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CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, about 150 followers of the agency’s Twitter account listen to presentations about NASA’s Juno mission to Jupiter during Tweetup activities inside a tent at the Press Site. The tweeters are at the center for two days of Juno prelaunch activities. Juno is NASA’s mission to Jupiter to study the giant planet and improve our understanding of the planet’s formation and evolution. The tweeters will share their experiences with followers through the social networking site Twitter. Attendees represent 28 states, the District of Columbia and five other countries: Canada, Finland, Norway, Spain and the United Kingdom. This is the first time NASA has invited Twitter followers to experience the launch of a planetary spacecraft. The Juno spacecraft is scheduled to launch on an Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, Aug. 5, at 11:34 a.m. EDT. For more information, visit http://www.nasa.gov/juno. Photo credit: NASA/Fletcher Hildreth KSC-2011-6253

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, abou...

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, about 150 followers of the agency’s Twitter account listen to presentations about NASA’s Juno mission to Jupiter during Tweetup activities insid... More

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, NASA Administrator Charles Bolden speaks to about 150 followers of the agency’s Twitter account during Juno Tweetup activities inside a tent at the Press Site. The tweeters are at the center for two days of prelaunch activities. Juno is NASA’s mission to Jupiter to study the giant planet and improve our understanding of the planet’s formation and evolution. The tweeters will share their experiences with followers through the social networking site Twitter. Attendees represent 28 states, the District of Columbia and five other countries: Canada, Finland, Norway, Spain and the United Kingdom. This is the first time NASA has invited Twitter followers to experience the launch of a planetary spacecraft. The Juno spacecraft is scheduled to launch on an Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, Aug. 5, at 11:34 a.m. EDT. For more information, visit http://www.nasa.gov/juno. Photo credit: NASA/Gianni M. Woods KSC-2011-6250

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, NASA...

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, NASA Administrator Charles Bolden speaks to about 150 followers of the agency’s Twitter account during Juno Tweetup activities inside a tent at ... More

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, Andrew Aldrin, director of Business Development and Advanced Programs for the United Launch Alliance, speaks to about 150 followers of the agency’s Twitter account during Juno Tweetup activities inside a tent at the Press Site. The tweeters are at the center for two days of prelaunch activities. Juno is NASA’s mission to Jupiter to study the giant planet and improve our understanding of the planet’s formation and evolution. The tweeters will share their experiences with followers through the social networking site Twitter. Attendees represent 28 states, the District of Columbia and five other countries: Canada, Finland, Norway, Spain and the United Kingdom. This is the first time NASA has invited Twitter followers to experience the launch of a planetary spacecraft. The Juno spacecraft is scheduled to launch on an Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, Aug. 5, at 11:34 a.m. EDT. For more information, visit http://www.nasa.gov/juno. Photo credit: NASA/Gianni M. Woods KSC-2011-6247

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, Andr...

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, Andrew Aldrin, director of Business Development and Advanced Programs for the United Launch Alliance, speaks to about 150 followers of the agenc... More

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, NASA Administrator Charles Bolden speaks to about 150 followers of the agency’s Twitter account during Juno Tweetup activities inside a tent at the Press Site. The tweeters are at the center for two days of prelaunch activities. Juno is NASA’s mission to Jupiter to study the giant planet and improve our understanding of the planet’s formation and evolution. The tweeters will share their experiences with followers through the social networking site Twitter. Attendees represent 28 states, the District of Columbia and five other countries: Canada, Finland, Norway, Spain and the United Kingdom. This is the first time NASA has invited Twitter followers to experience the launch of a planetary spacecraft. The Juno spacecraft is scheduled to launch on an Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, Aug. 5, at 11:34 a.m. EDT. For more information, visit http://www.nasa.gov/juno. Photo credit: NASA/Gianni M. Woods KSC-2011-6249

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, NASA...

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, NASA Administrator Charles Bolden speaks to about 150 followers of the agency’s Twitter account during Juno Tweetup activities inside a tent at ... More

CAPE CANAVERAL, Fla. -- At the Press Site at NASA’s Kennedy Space Center in Florida, about 150 followers of the agency’s Twitter account view the launch of NASA's Juno planetary probe atop a United Launch Alliance Atlas V-551 rocket. The tweeters, in turn, will share their experiences with followers through the social networking site Twitter. Liftoff was at 12:25 p.m. EDT Aug. 5 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. The solar-powered spacecraft will orbit Jupiter's poles 33 times to find out more about the gas giant's origins, structure, atmosphere and magnetosphere and investigate the existence of a solid planetary core. NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages the Juno mission for the principal investigator, Scott Bolton, of Southwest Research Institute in San Antonio. The Juno mission is part of the New Frontiers Program managed at NASA's Marshall Space Flight Center in Huntsville, Ala. Lockheed Martin Space Systems, Denver, built the spacecraft. Launch management for the mission is the responsibility of NASA's Launch Services Program at the Kennedy Space Center in Florida. For more information, visit www.nasa.gov/juno. Photo credit: NASA/Fletcher Hildreth KSC-2011-6259

CAPE CANAVERAL, Fla. -- At the Press Site at NASA’s Kennedy Space Cent...

CAPE CANAVERAL, Fla. -- At the Press Site at NASA’s Kennedy Space Center in Florida, about 150 followers of the agency’s Twitter account view the launch of NASA's Juno planetary probe atop a United Launch Allia... More

CAPE CANAVERAL, Fla. -- At the Press Site at NASA’s Kennedy Space Center in Florida, about 150 followers of the agency’s Twitter account view the launch of NASA's Juno planetary probe atop a United Launch Alliance Atlas V-551 rocket. The tweeters, in turn, will share their experiences with followers through the social networking site Twitter. Liftoff was at 12:25 p.m. EDT Aug. 5 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. The solar-powered spacecraft will orbit Jupiter's poles 33 times to find out more about the gas giant's origins, structure, atmosphere and magnetosphere and investigate the existence of a solid planetary core. NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages the Juno mission for the principal investigator, Scott Bolton, of Southwest Research Institute in San Antonio. The Juno mission is part of the New Frontiers Program managed at NASA's Marshall Space Flight Center in Huntsville, Ala. Lockheed Martin Space Systems, Denver, built the spacecraft. Launch management for the mission is the responsibility of NASA's Launch Services Program at the Kennedy Space Center in Florida. For more information, visit www.nasa.gov/juno. Photo credit: NASA/Fletcher Hildreth KSC-2011-6257

CAPE CANAVERAL, Fla. -- At the Press Site at NASA’s Kennedy Space Cent...

CAPE CANAVERAL, Fla. -- At the Press Site at NASA’s Kennedy Space Center in Florida, about 150 followers of the agency’s Twitter account view the launch of NASA's Juno planetary probe atop a United Launch Allia... More

CAPE CANAVERAL, Fla. – Tweetup participants ask questions during prelaunch activities for NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission at the Kennedy Space Center Visitor Complex in Florida. Participants toured NASA’s Kennedy Space Center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Gianni Woods KSC-2011-6799

CAPE CANAVERAL, Fla. – Tweetup participants ask questions during prela...

CAPE CANAVERAL, Fla. – Tweetup participants ask questions during prelaunch activities for NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission at the Kennedy Space Center Visitor Complex in Florida. ... More

CAPE CANAVERAL, Fla. – NASA Administrator Charlie Bolden shares a humorous moment with a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for the agency’s Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured NASA’s Kennedy Space Center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Gianni Woods KSC-2011-6789

CAPE CANAVERAL, Fla. – NASA Administrator Charlie Bolden shares a humo...

CAPE CANAVERAL, Fla. – NASA Administrator Charlie Bolden shares a humorous moment with a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for the ... More

CAPE CANAVERAL, Fla. – Maria Zuber, GRAIL principal investigator at the Massachusetts Institute of Technology in Cambridge, speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured NASA’s Kennedy Space Center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Gianni Woods KSC-2011-6794

CAPE CANAVERAL, Fla. – Maria Zuber, GRAIL principal investigator at th...

CAPE CANAVERAL, Fla. – Maria Zuber, GRAIL principal investigator at the Massachusetts Institute of Technology in Cambridge, speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex ... More

CAPE CANAVERAL, Fla. – Astrophysicist Dr. Neil deGrasse Tyson with the American Museum of Natural History’s Hayden Planetarium in New York, speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for the agency’s Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured NASA’s Kennedy Space Center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Gianni Woods KSC-2011-6800

CAPE CANAVERAL, Fla. – Astrophysicist Dr. Neil deGrasse Tyson with the...

CAPE CANAVERAL, Fla. – Astrophysicist Dr. Neil deGrasse Tyson with the American Museum of Natural History’s Hayden Planetarium in New York, speaks to a group of Tweetup participants at the Kennedy Space Center ... More

CAPE CANAVERAL, Fla. – NASA Administrator Charlie Bolden speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for the agency’s Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured NASA’s Kennedy Space Center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Gianni Woods KSC-2011-6788

CAPE CANAVERAL, Fla. – NASA Administrator Charlie Bolden speaks to a g...

CAPE CANAVERAL, Fla. – NASA Administrator Charlie Bolden speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for the agency’s Gravity Rec... More

CAPE CANAVERAL, Fla. – NASA Administrator Charlie Bolden speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for the agency’s Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured NASA’s Kennedy Space Center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Gianni Woods KSC-2011-6787

CAPE CANAVERAL, Fla. – NASA Administrator Charlie Bolden speaks to a g...

CAPE CANAVERAL, Fla. – NASA Administrator Charlie Bolden speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for the agency’s Gravity Rec... More

CAPE CANAVERAL, Fla. – Jim Adams, deputy director of planetary science at NASA Headquarters in Washington, speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for the agency’s Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured NASA’s Kennedy Space Center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Gianni Woods KSC-2011-6793

CAPE CANAVERAL, Fla. – Jim Adams, deputy director of planetary science...

CAPE CANAVERAL, Fla. – Jim Adams, deputy director of planetary science at NASA Headquarters in Washington, speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during... More

CAPE CANAVERAL, Fla. – Stu Spath, chief spacecraft engineer with Lockheed Martin, speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for the agency’s Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured NASA’s Kennedy Space Center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Gianni Woods KSC-2011-6798

CAPE CANAVERAL, Fla. – Stu Spath, chief spacecraft engineer with Lockh...

CAPE CANAVERAL, Fla. – Stu Spath, chief spacecraft engineer with Lockheed Martin, speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for... More

CAPE CANAVERAL, Fla. – Sami Asmar, GRAIL deputy project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, Calif., speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex in Florida during prelaunch activities for the agency’s Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured NASA’s Kennedy Space Center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Gianni Woods KSC-2011-6795

CAPE CANAVERAL, Fla. – Sami Asmar, GRAIL deputy project scientist at N...

CAPE CANAVERAL, Fla. – Sami Asmar, GRAIL deputy project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, Calif., speaks to a group of Tweetup participants at the Kennedy Space Center Visitor Complex i... More

CAPE CANAVERAL, Fla. – Tweetup participants ask questions during prelaunch activities for NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission at the Kennedy Space Center Visitor Complex in Florida. Participants toured NASA’s Kennedy Space Center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Gianni Woods KSC-2011-6796

CAPE CANAVERAL, Fla. – Tweetup participants ask questions during prela...

CAPE CANAVERAL, Fla. – Tweetup participants ask questions during prelaunch activities for NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission at the Kennedy Space Center Visitor Complex in Florida. ... More

CAPE CANAVERAL, Fla. – Astrophysicist Dr. Neil deGrasse Tyson with the American Museum of Natural History’s Hayden Planetarium in New York, speaks to a group of Tweetup participants at NASA Kennedy Space Center’s NASA Causeway launch viewing site in Florida during prelaunch activities for the agency’s Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured the center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Kim Shiflett KSC-2011-6815

CAPE CANAVERAL, Fla. – Astrophysicist Dr. Neil deGrasse Tyson with the...

CAPE CANAVERAL, Fla. – Astrophysicist Dr. Neil deGrasse Tyson with the American Museum of Natural History’s Hayden Planetarium in New York, speaks to a group of Tweetup participants at NASA Kennedy Space Center... More

CAPE CANAVERAL, Fla. – Astrophysicist Dr. Neil deGrasse Tyson with the American Museum of Natural History’s Hayden Planetarium in New York, speaks to a group of Tweetup participants at NASA Kennedy Space Center’s NASA Causeway launch viewing site in Florida during prelaunch activities for the agency’s Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured the center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter.GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Kim Shiflett KSC-2011-6814

CAPE CANAVERAL, Fla. – Astrophysicist Dr. Neil deGrasse Tyson with the...

CAPE CANAVERAL, Fla. – Astrophysicist Dr. Neil deGrasse Tyson with the American Museum of Natural History’s Hayden Planetarium in New York, speaks to a group of Tweetup participants at NASA Kennedy Space Center... More

CAPE CANAVERAL, Fla. – A Tweetup participant searches for the right photo angle along the NASA Causeway launch viewing area at NASA’s Kennedy Space Center in Florida during prelaunch activities for the agency’s Gravity Recovery and Interior Laboratory (GRAIL) mission. Participants toured the center and got a close-up view of Space Launch Complex 17B at Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon’s gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon’s crust and mantle and will help answer fundamental questions about the moon’s internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon’s gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. Launch is scheduled for 8:37:06 a.m. EDT Sept. 8. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Kim Shiflett KSC-2011-6813

CAPE CANAVERAL, Fla. – A Tweetup participant searches for the right ph...

CAPE CANAVERAL, Fla. – A Tweetup participant searches for the right photo angle along the NASA Causeway launch viewing area at NASA’s Kennedy Space Center in Florida during prelaunch activities for the agency’s... More

CAPE CANAVERAL, Fla. – At KARS Park 1 on Merritt Island in Florida, a group of Tweetup participants watch as a United Launch Alliance Delta II Heavy rocket lifts off at 9:08 a.m. EDT Sept. 10 from Space Launch Complex 17B at Cape Canaveral Air Force Station carrying NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission to the moon. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Frankie Martin KSC-2011-6882

CAPE CANAVERAL, Fla. – At KARS Park 1 on Merritt Island in Florida, a ...

CAPE CANAVERAL, Fla. – At KARS Park 1 on Merritt Island in Florida, a group of Tweetup participants watch as a United Launch Alliance Delta II Heavy rocket lifts off at 9:08 a.m. EDT Sept. 10 from Space Launch ... More

CAPE CANAVERAL, Fla. – At KARS Park 1 on Merritt Island in Florida, a group of Tweetup participants take pictures and watch excitedly as a United Launch Alliance Delta II Heavy rocket lifts off at 9:08 a.m. EDT Sept. 10 from Space Launch Complex 17B at Cape Canaveral Air Force Station carrying NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission to the moon. The tweeters will share their experiences with followers through the social networking site Twitter. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Frankie Martin KSC-2011-6884

CAPE CANAVERAL, Fla. – At KARS Park 1 on Merritt Island in Florida, a ...

CAPE CANAVERAL, Fla. – At KARS Park 1 on Merritt Island in Florida, a group of Tweetup participants take pictures and watch excitedly as a United Launch Alliance Delta II Heavy rocket lifts off at 9:08 a.m. EDT... More

CAPE CANAVERAL, Fla. – Ashwin Vasavada, deputy project scientist for the Mars Science Laboratory (MSL) at NASA's Jet Propulsion Laboratory, speaks to a group of Tweetup participants at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s MSL launch. Pan Conrad, deputy principal investigator for the Sample Analysis at Mars (SAM) instrument on the Curiosity rover from NASA Goddard Space Flight Center, awaits her turn to speak, at right. Following a series of briefings, participants will tour the center and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. MSL's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-7936

CAPE CANAVERAL, Fla. – Ashwin Vasavada, deputy project scientist for t...

CAPE CANAVERAL, Fla. – Ashwin Vasavada, deputy project scientist for the Mars Science Laboratory (MSL) at NASA's Jet Propulsion Laboratory, speaks to a group of Tweetup participants at NASA Kennedy Space Center... More

CAPE CANAVERAL, Fla. – Ryan Bechtel, from the Department of Energy, speaks to a group of Tweetup participants at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Following a series of briefings, participants will tour the center and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. MSL's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-7935

CAPE CANAVERAL, Fla. – Ryan Bechtel, from the Department of Energy, sp...

CAPE CANAVERAL, Fla. – Ryan Bechtel, from the Department of Energy, speaks to a group of Tweetup participants at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Ma... More

CAPE CANAVERAL, Fla. – Doug McCuistion, director of the Mars Exploration Program at NASA Headquarters, speaks to a group of Tweetup participants at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Following a series of briefings, participants will tour the center and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. MSL's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-7933

CAPE CANAVERAL, Fla. – Doug McCuistion, director of the Mars Explorati...

CAPE CANAVERAL, Fla. – Doug McCuistion, director of the Mars Exploration Program at NASA Headquarters, speaks to a group of Tweetup participants at NASA Kennedy Space Center's Press Site in Florida during prela... More

CAPE CANAVERAL, Fla. – Rex Engelhardt, mission manager in NASA's Launch Services Program at the NASA Kennedy Space Center, speaks to a group of Tweetup participants at Kennedy's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Following a series of briefings, participants will tour the center and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. MSL's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-7937

CAPE CANAVERAL, Fla. – Rex Engelhardt, mission manager in NASA's Launc...

CAPE CANAVERAL, Fla. – Rex Engelhardt, mission manager in NASA's Launch Services Program at the NASA Kennedy Space Center, speaks to a group of Tweetup participants at Kennedy's Press Site in Florida during pre... More

CAPE CANAVERAL, Fla. – Television personality Bill Nye the Science Guy talks to the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7948

CAPE CANAVERAL, Fla. – Television personality Bill Nye the Science Guy...

CAPE CANAVERAL, Fla. – Television personality Bill Nye the Science Guy talks to the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activiti... More

CAPE CANAVERAL, Fla. – Participants of a NASA Tweetup pose for a group portrait at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Behind them, the countdown clock ticks off the seconds to launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7951

CAPE CANAVERAL, Fla. – Participants of a NASA Tweetup pose for a group...

CAPE CANAVERAL, Fla. – Participants of a NASA Tweetup pose for a group portrait at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) la... More

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i.am (left), entertainer and member of The Black Eyed Peas, receives a briefing from Larry Price, Lockheed Martin deputy program manager, on the Orion Multi Purpose Crew Vehicle and the Space Launch System heavy-lift rocket during a tour of the Operations and Checkout Building (O&C). The visit to the O&C followed Will.i.am's participation in a NASA Tweetup. The Tweetup is part of prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch and provides the opportunity for tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from Space Launch Complex-41 on Cape Canaveral Air Force Station was at 10:02 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-7999

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i...

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i.am (left), entertainer and member of The Black Eyed Peas, receives a briefing from Larry Price, Lockheed Martin deputy program manager, on ... More

CAPE CANAVERAL, Fla. – Expedition 25 astronaut Doug Wheelock talks to the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7946

CAPE CANAVERAL, Fla. – Expedition 25 astronaut Doug Wheelock talks to ...

CAPE CANAVERAL, Fla. – Expedition 25 astronaut Doug Wheelock talks to the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the... More

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Press Site in Florida, participants in NASA's Tweetup photograph the launch of the agency's Mars Science Laboratory (MSL) as the countdown clock ticks off the seconds. The tweeters will share their experiences with followers through the social networking site Twitter. The 197-foot-tall United Launch Alliance Atlas V rocket lifted off Space Launch Complex-41 on neighboring Cape Canaveral Air Force Station at 10:02 a.m. EST at the opening of the launch window. MSL's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7968

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Press Site in Fl...

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Press Site in Florida, participants in NASA's Tweetup photograph the launch of the agency's Mars Science Laboratory (MSL) as the countdown clock ticks off t... More

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, presenters and Kennedy personnel supporting a NASA Tweetup get a close-up look at space shuttle Endeavour being stored in the Vehicle Assembly Building. From left are Yves Lamothe, lead systems engineer for the 21st Century Ground Systems Program at Kennedy; NASA Deputy Administrator Lori Garver; former astronaut Leland Melvin, NASA associate administrator for Education; and Will.i.am, entertainer and member of The Black Eyed Peas. The Tweetup is part of prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch and provides the opportunity for tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from Space Launch Complex-41 on Cape Canaveral Air Force Station was at 10:02 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-7992

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, presen...

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, presenters and Kennedy personnel supporting a NASA Tweetup get a close-up look at space shuttle Endeavour being stored in the Vehicle Assembly Bui... More

CAPE CANAVERAL, Fla. – From left, Lars Perkins, chair of the Education and Public Outreach Committee of the NASA Advisory Council; former astronaut Leland Melvin, NASA associate administrator for Education; Will.i.am, entertainer and member of The Black Eyed Peas; and NASA Deputy Administrator Lori Garver talk to the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7957

CAPE CANAVERAL, Fla. – From left, Lars Perkins, chair of the Education...

CAPE CANAVERAL, Fla. – From left, Lars Perkins, chair of the Education and Public Outreach Committee of the NASA Advisory Council; former astronaut Leland Melvin, NASA associate administrator for Education; Wil... More

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Press Site in Florida, participants in NASA's Tweetup photograph the launch of the agency's Mars Science Laboratory (MSL) as it races through the clouds. The tweeters will share their experiences with followers through the social networking site Twitter. The 197-foot-tall United Launch Alliance Atlas V rocket lifted off Space Launch Complex-41 on neighboring Cape Canaveral Air Force Station at 10:02 a.m. EST at the opening of the launch window. MSL's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7969

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Press Site in Fl...

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Press Site in Florida, participants in NASA's Tweetup photograph the launch of the agency's Mars Science Laboratory (MSL) as it races through the clouds. Th... More

CAPE CANAVERAL, Fla. – NASA Deputy Administrator Lori Garver addresses the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Former astronaut Leland Melvin, NASA associate administrator for Education, looks on at left. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7955

CAPE CANAVERAL, Fla. – NASA Deputy Administrator Lori Garver addresses...

CAPE CANAVERAL, Fla. – NASA Deputy Administrator Lori Garver addresses the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for th... More

CAPE CANAVERAL, Fla. – NASA Deputy Administrator Lori Garver addresses the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7954

CAPE CANAVERAL, Fla. – NASA Deputy Administrator Lori Garver addresses...

CAPE CANAVERAL, Fla. – NASA Deputy Administrator Lori Garver addresses the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for th... More

CAPE CANAVERAL, Fla. – NASA Tweetup participants hear a presentation by Expedition 25 astronaut Doug Wheelock in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7945

CAPE CANAVERAL, Fla. – NASA Tweetup participants hear a presentation b...

CAPE CANAVERAL, Fla. – NASA Tweetup participants hear a presentation by Expedition 25 astronaut Doug Wheelock in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities fo... More

CAPE CANAVERAL, Fla. – From left, Yves Lamothe, lead systems engineer for the 21st Century Ground Systems Program at NASA Kennedy Space Center; NASA Administrator Charles Bolden; Will.i.am, entertainer and member of The Black Eyed Peas; and former astronaut Leland Melvin, NASA associate administrator for Education, take part in a Tweetup at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Behind them, the countdown clock ticks off the seconds to launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7952

CAPE CANAVERAL, Fla. – From left, Yves Lamothe, lead systems engineer ...

CAPE CANAVERAL, Fla. – From left, Yves Lamothe, lead systems engineer for the 21st Century Ground Systems Program at NASA Kennedy Space Center; NASA Administrator Charles Bolden; Will.i.am, entertainer and memb... More

CAPE CANAVERAL, Fla. – Television personality Bill Nye the Science Guy talks to the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7947

CAPE CANAVERAL, Fla. – Television personality Bill Nye the Science Guy...

CAPE CANAVERAL, Fla. – Television personality Bill Nye the Science Guy talks to the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activiti... More

CAPE CANAVERAL, Fla. – NASA Administrator Charles Bolden addresses the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7949

CAPE CANAVERAL, Fla. – NASA Administrator Charles Bolden addresses the...

CAPE CANAVERAL, Fla. – NASA Administrator Charles Bolden addresses the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the ag... More

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i.am (left), entertainer and member of The Black Eyed Peas, accompanied by Yves Lamothe, lead systems engineer for the 21st Century Ground Systems Program at Kennedy; former astronaut Leland Melvin, NASA associate administrator for Education (blue flight suit), and NASA Deputy Administrator Lori Garver (green jacket), receives a tour of the Operations and Checkout Building (O&C) from Larry Price, Lockheed Martin deputy program manager. The visit to the O&C followed their participation in a NASA Tweetup. The Tweetup is part of prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch and provides the opportunity for tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from Space Launch Complex-41 on Cape Canaveral Air Force Station was at 10:02 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-7996

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i...

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i.am (left), entertainer and member of The Black Eyed Peas, accompanied by Yves Lamothe, lead systems engineer for the 21st Century Ground Sy... More

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building at NASA Kennedy Space Center in Florida, Will.i.am, entertainer and member of The Black Eyed Peas, and television personality Bill Nye the Science Guy pose in front of a picture of a space shuttle being lifted into a high bay following their participation in a NASA Tweetup. The Tweetup is part of prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch and provides the opportunity for tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from Space Launch Complex-41 on Cape Canaveral Air Force Station was at 10:02 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-7993

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building at NASA Kenned...

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building at NASA Kennedy Space Center in Florida, Will.i.am, entertainer and member of The Black Eyed Peas, and television personality Bill Nye the Science Guy pos... More

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Press Site in Florida, participants in NASA's Tweetup photograph the launch of the agency's Mars Science Laboratory (MSL) from the turn basin. The tweeters will share their experiences with followers through the social networking site Twitter. The 197-foot-tall United Launch Alliance Atlas V rocket lifted off Space Launch Complex-41 on neighboring Cape Canaveral Air Force Station at 10:02 a.m. EST at the opening of the launch window. MSL's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7966

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Press Site in Fl...

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Press Site in Florida, participants in NASA's Tweetup photograph the launch of the agency's Mars Science Laboratory (MSL) from the turn basin. The tweeters... More

CAPE CANAVERAL, Fla. – NASA Administrator Charles Bolden addresses the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7950

CAPE CANAVERAL, Fla. – NASA Administrator Charles Bolden addresses the...

CAPE CANAVERAL, Fla. – NASA Administrator Charles Bolden addresses the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the ag... More

CAPE CANAVERAL, Fla. – From left, former astronaut Leland Melvin, NASA associate administrator for Education; Will.i.am, entertainer and member of The Black Eyed Peas; and NASA Deputy Administrator Lori Garver share a light moment with the participants of a NASA Tweetup in a tent set up at NASA Kennedy Space Center's Press Site in Florida during prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch. Participants in the Tweetup are given the opportunity to listen to agency briefings, tour locations on the center normally off limits to visitors, and get a close-up view of Space Launch Complex-41 on Cape Canaveral Air Force Station. The tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from pad 41 is planned during a launch window which extends from 10:02 a.m. to 11:45 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-7956

CAPE CANAVERAL, Fla. – From left, former astronaut Leland Melvin, NASA...

CAPE CANAVERAL, Fla. – From left, former astronaut Leland Melvin, NASA associate administrator for Education; Will.i.am, entertainer and member of The Black Eyed Peas; and NASA Deputy Administrator Lori Garver ... More

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i.am, entertainer and member of The Black Eyed Peas, hears about the space shuttle mission plaques lining the lobby of the Launch Control Center (LCC) from NASA's Charlie Blackwell Thompson. Also viewing the plaques in the background are NASA Deputy Administrator Lori Garver and former astronaut Leland Melvin, NASA associate administrator for Education. The visit to the LCC followed their participation in a NASA Tweetup. The Tweetup is part of prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch and provides the opportunity for tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from Space Launch Complex-41 on Cape Canaveral Air Force Station was at 10:02 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-7994

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i...

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i.am, entertainer and member of The Black Eyed Peas, hears about the space shuttle mission plaques lining the lobby of the Launch Control Cen... More

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i.am (center), entertainer and member of The Black Eyed Peas, talks with employees on hand during his tour of the Operations and Checkout Building (O&C). The visit to the O&C followed his participation in a NASA Tweetup. The Tweetup is part of prelaunch activities for the agency’s Mars Science Laboratory (MSL) launch and provides the opportunity for tweeters will share their experiences with followers through the social networking site Twitter. The MSL mission will pioneer precision landing technology and a sky-crane touchdown to place a car-sized rover, Curiosity, near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. Liftoff of MSL aboard a United Launch Alliance Atlas V rocket from Space Launch Complex-41 on Cape Canaveral Air Force Station was at 10:02 a.m. EST on Nov. 26. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-8000

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i...

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center in Florida, Will.i.am (center), entertainer and member of The Black Eyed Peas, talks with employees on hand during his tour of the Operations and Checkout Bui... More

CAPE CANAVERAL, Fla. – The manager of NASA's Commercial Crew Program CCP, Ed Mango, hosts a virtual conversation, called a Tweet Chat, with Twitter followers from around the world. Those who follow www.twitter.com/commercial_crew had an hour-long opportunity to ask Mango questions about NASA’s efforts to get astronauts to low Earth orbit and the International Space Station aboard American rockets and spacecraft. Mango stuck to the social networking service's 140 character limit and answered dozens of questions. At left, is Brittani Sims, a member of the CCP team. The goal of CCP is to drive down the cost of space travel as well as open up space to more people than ever before by balancing industry’s own innovative capabilities with NASA's 50 years of human spaceflight experience. Seven aerospace companies are maturing launch vehicle and spacecraft designs under the program’s second round of development, called Commercial Crew Development Round 2 CCDev2), including Alliant Techsystems Inc. ATK, The Boeing Co., Excalibur Almaz Inc., Blue Origin, Sierra Nevada, Space Exploration Technologies SpaceX, and United Launch Alliance ULA. For more information, visit www.nasa.gov/commercialcrew. Image credit: NASA/Gianni Woods KSC-2012-2645

CAPE CANAVERAL, Fla. – The manager of NASA's Commercial Crew Program C...

CAPE CANAVERAL, Fla. – The manager of NASA's Commercial Crew Program CCP, Ed Mango, hosts a virtual conversation, called a Tweet Chat, with Twitter followers from around the world. Those who follow www.twitter.... More

CAPE CANAVERAL, Fla. – The Twitter page of NASA’s Commercial Crew Program CCP buzzes with activity as program manager, Ed Mango, hosts a virtual conversation, called a Tweet Chat, with followers from around the world. Those who follow www.twitter.com/commercial_crew had an hour-long opportunity to ask Mango questions about NASA’s efforts to get astronauts to low Earth orbit and the International Space Station aboard American rockets and spacecraft. Mango stuck to the social networking service's 140 character limit and answered dozens of questions. The goal of CCP is to drive down the cost of space travel as well as open up space to more people than ever before by balancing industry’s own innovative capabilities with NASA's 50 years of human spaceflight experience. Seven aerospace companies are maturing launch vehicle and spacecraft designs under the program’s second round of development, called Commercial Crew Development Round 2 CCDev2), including Alliant Techsystems Inc. ATK, The Boeing Co., Excalibur Almaz Inc., Blue Origin, Sierra Nevada, Space Exploration Technologies SpaceX, and United Launch Alliance ULA. For more information, visit www.nasa.gov/commercialcrew. Image credit: NASA/Gianni Woods KSC-2012-2646

CAPE CANAVERAL, Fla. – The Twitter page of NASA’s Commercial Crew Prog...

CAPE CANAVERAL, Fla. – The Twitter page of NASA’s Commercial Crew Program CCP buzzes with activity as program manager, Ed Mango, hosts a virtual conversation, called a Tweet Chat, with followers from around the... More

CAPE CANAVERAL, Fla. – The manager of NASA's Commercial Crew Program CCP, Ed Mango, hosts a virtual conversation, called a Tweet Chat, with Twitter followers from around the world. Those who follow www.twitter.com/commercial_crew had an hour-long opportunity to ask Mango questions about NASA’s efforts to get astronauts to low Earth orbit and the International Space Station aboard American rockets and spacecraft. Mango stuck to the social networking service's 140 character limit and answered dozens of questions. At left, is Brittani Sims, a member of the CCP team. The goal of CCP is to drive down the cost of space travel as well as open up space to more people than ever before by balancing industry’s own innovative capabilities with NASA's 50 years of human spaceflight experience. Seven aerospace companies are maturing launch vehicle and spacecraft designs under the program’s second round of development, called Commercial Crew Development Round 2 CCDev2), including Alliant Techsystems Inc. ATK, The Boeing Co., Excalibur Almaz Inc., Blue Origin, Sierra Nevada, Space Exploration Technologies SpaceX, and United Launch Alliance ULA. For more information, visit www.nasa.gov/commercialcrew. Image credit: NASA/Gianni Woods KSC-2012-2647

CAPE CANAVERAL, Fla. – The manager of NASA's Commercial Crew Program C...

CAPE CANAVERAL, Fla. – The manager of NASA's Commercial Crew Program CCP, Ed Mango, hosts a virtual conversation, called a Tweet Chat, with Twitter followers from around the world. Those who follow www.twitter.... More

CAPE CANAVERAL, Fla. – Trent Perrotto of NASA Public Affairs addresses an audience of participants during a NASA social question and answer session. The group is assembled in Kennedy Space Center's Operations and Checkout Building high bay for an event marking the arrival of NASA's first space-bound Orion capsule in Florida. Joining Perrotto on stage, from the left, are Mark Geyer, Orion program manager David Beaman, NASA Space Launch System spacecraft and payload integration manager Pepper Phillips, program manager for NASA's Ground Systems Development and Operations and NASA astronaut Rex Walheim. The tweeters will share their experiences with followers through the social networking site Twitter. Slated for Exploration Flight Test-1, an uncrewed mission planned for 2014, the capsule will travel farther into space than any human spacecraft has gone in more than 40 years. NASA's Michoud Assembly Facility in New Orleans built the crew module pressure vessel. The Orion production team will prepare the module for flight by installing heat-shielding thermal protection systems, avionics and other subsystems. For more information, visit http://www.nasa.gov/orion Photo credit: NASA/Kim Shiflett KSC-2012-3734

CAPE CANAVERAL, Fla. – Trent Perrotto of NASA Public Affairs addresses...

CAPE CANAVERAL, Fla. – Trent Perrotto of NASA Public Affairs addresses an audience of participants during a NASA social question and answer session. The group is assembled in Kennedy Space Center's Operations a... More

CAPE CANAVERAL, Fla. – Trent Perrotto of NASA Public Affairs addresses an audience of participants during a NASA social question and answer session. The group is assembled in Kennedy Space Center's Operations and Checkout Building high bay for an event marking the arrival of NASA's first space-bound Orion capsule in Florida. Joining Perrotto on stage, from the left, are Mark Geyer, Orion program manager David Beaman, NASA Space Launch System spacecraft and payload integration manager Pepper Phillips, program manager for NASA's Ground Systems Development and Operations and NASA astronaut Rex Walheim. The tweeters will share their experiences with followers through the social networking site Twitter. Slated for Exploration Flight Test-1, an uncrewed mission planned for 2014, the capsule will travel farther into space than any human spacecraft has gone in more than 40 years. NASA's Michoud Assembly Facility in New Orleans built the crew module pressure vessel. The Orion production team will prepare the module for flight by installing heat-shielding thermal protection systems, avionics and other subsystems. For more information, visit http://www.nasa.gov/orion Photo credit: NASA/Kim Shiflett KSC-2012-3733

CAPE CANAVERAL, Fla. – Trent Perrotto of NASA Public Affairs addresses...

CAPE CANAVERAL, Fla. – Trent Perrotto of NASA Public Affairs addresses an audience of participants during a NASA social question and answer session. The group is assembled in Kennedy Space Center's Operations a... More

CAPE CANAVERAL, Fla. – NASA astronaut Rex Walheim, far right, addresses an participants during a NASA social question and answer session. The group is assembled in Kennedy Space Center's Operations and Checkout Building high bay for an event marking the arrival of NASA's first space-bound Orion capsule in Florida. At the podium is Trent Perrotto of NASA Public Affairs. Joining Perrotto on stage, from the left, are Mark Geyer, Orion program manager David Beaman, NASA Space Launch System spacecraft and payload integration manager Pepper Phillips, program manager for NASA's Ground Systems Development and Operations and Walheim. The tweeters will share their experiences with followers through the social networking site Twitter. Slated for Exploration Flight Test-1, an uncrewed mission planned for 2014, the capsule will travel farther into space than any human spacecraft has gone in more than 40 years. NASA's Michoud Assembly Facility in New Orleans built the crew module pressure vessel. The Orion production team will prepare the module for flight by installing heat-shielding thermal protection systems, avionics and other subsystems. For more information, visit http://www.nasa.gov/orion Photo credit: NASA/Kim Shiflett KSC-2012-3735

CAPE CANAVERAL, Fla. – NASA astronaut Rex Walheim, far right, addresse...

CAPE CANAVERAL, Fla. – NASA astronaut Rex Walheim, far right, addresses an participants during a NASA social question and answer session. The group is assembled in Kennedy Space Center's Operations and Checkout... More

CAPE CANAVERAL, Fla. -- NASA's Bruce Buckingham, of the Kennedy Space Center's Technology Integration Office, speaks to about 45 of social media followers about advances in technology made possible by space research and development. He was one of several speakers to address the participants during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4184

CAPE CANAVERAL, Fla. -- NASA's Bruce Buckingham, of the Kennedy Space ...

CAPE CANAVERAL, Fla. -- NASA's Bruce Buckingham, of the Kennedy Space Center's Technology Integration Office, speaks to about 45 of social media followers about advances in technology made possible by space res... More

CAPE CANAVERAL, Fla. -- From the left, former NASA Director of Public Affairs Hugh Harris is joined by Jack King, former NASA chief of Public Information, John Tribe, retired chief engineer for Boeing/Rockwell Launch Support Services, and Roy Tharpe, president of Space Gateway Support, speak to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4178

CAPE CANAVERAL, Fla. -- From the left, former NASA Director of Public ...

CAPE CANAVERAL, Fla. -- From the left, former NASA Director of Public Affairs Hugh Harris is joined by Jack King, former NASA chief of Public Information, John Tribe, retired chief engineer for Boeing/Rockwell ... More

CAPE CANAVERAL, Fla. -- Roy Tharpe, president of Space Gateway Support, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4181

CAPE CANAVERAL, Fla. -- Roy Tharpe, president of Space Gateway Support...

CAPE CANAVERAL, Fla. -- Roy Tharpe, president of Space Gateway Support, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. ... More

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers listen to a speaker during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4185

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers list...

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers listen to a speaker during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants ... More

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers respond to a speaker during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4183

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers resp...

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers respond to a speaker during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants... More

CAPE CANAVERAL, Fla. -- John Tribe, retired chief engineer for Boeing/Rockwell Launch Support Services, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4179

CAPE CANAVERAL, Fla. -- John Tribe, retired chief engineer for Boeing/...

CAPE CANAVERAL, Fla. -- John Tribe, retired chief engineer for Boeing/Rockwell Launch Support Services, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Cen... More

CAPE CANAVERAL, Fla. -- Jack King, former NASA chief of Public Information, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4180

CAPE CANAVERAL, Fla. -- Jack King, former NASA chief of Public Informa...

CAPE CANAVERAL, Fla. -- Jack King, former NASA chief of Public Information, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and futu... More

CAPE CANAVERAL, Fla. -- One of about 45 of NASA’s social media followers photographs a speaker during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4182

CAPE CANAVERAL, Fla. -- One of about 45 of NASA’s social media followe...

CAPE CANAVERAL, Fla. -- One of about 45 of NASA’s social media followers photographs a speaker during two days of presentations on the Kennedy Space Center's past, present and future. The social media part... More

CAPE CANAVERAL, Fla. -- NASA's Bruce Buckingham, of the Kennedy Space Center's Technology Integration Office, speaks to about 45 of social media followers about advances in technology made possible by space research and development. He was one of several speakers to address the participants during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4186

CAPE CANAVERAL, Fla. -- NASA's Bruce Buckingham, of the Kennedy Space ...

CAPE CANAVERAL, Fla. -- NASA's Bruce Buckingham, of the Kennedy Space Center's Technology Integration Office, speaks to about 45 of social media followers about advances in technology made possible by space res... More

CAPE CANAVERAL, Fla. -- Former Kennedy Space Center Director Jay Honeycutt speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4188

CAPE CANAVERAL, Fla. -- Former Kennedy Space Center Director Jay Honey...

CAPE CANAVERAL, Fla. -- Former Kennedy Space Center Director Jay Honeycutt speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and futur... More

CAPE CANAVERAL, Fla. -- Lee Solid, a retired senior executive with Rockwell and Boeing, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4189

CAPE CANAVERAL, Fla. -- Lee Solid, a retired senior executive with Roc...

CAPE CANAVERAL, Fla. -- Lee Solid, a retired senior executive with Rockwell and Boeing, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, pres... More

CAPE CANAVERAL, Fla. -- NASA Director of Public Affairs Lisa Malone welcomes about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4177

CAPE CANAVERAL, Fla. -- NASA Director of Public Affairs Lisa Malone we...

CAPE CANAVERAL, Fla. -- NASA Director of Public Affairs Lisa Malone welcomes about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. ... More

CAPE CANAVERAL, Fla. -- Former NASA Director of Public Affairs Hugh Harris, left, is joined by Jill Rock, of Kennedy's External Relations Office, in speaking to about 45 of NASA’s social media followers about the space agency's extensive efforts to host guests and VIPs over the years. They were among several speakers to address the participants during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4190

CAPE CANAVERAL, Fla. -- Former NASA Director of Public Affairs Hugh Ha...

CAPE CANAVERAL, Fla. -- Former NASA Director of Public Affairs Hugh Harris, left, is joined by Jill Rock, of Kennedy's External Relations Office, in speaking to about 45 of NASA’s social media followers about t... More

CAPE CANAVERAL, Fla. -- Former Kennedy Space Center Director Jay Honeycutt, left, is joined by Lee Solid, a retired senior executive with Rockwell and Boeing, in speaking to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4187

CAPE CANAVERAL, Fla. -- Former Kennedy Space Center Director Jay Honey...

CAPE CANAVERAL, Fla. -- Former Kennedy Space Center Director Jay Honeycutt, left, is joined by Lee Solid, a retired senior executive with Rockwell and Boeing, in speaking to about 45 of NASA’s social media foll... More

CAPE CANAVERAL, Fla. -- One of about 45 of NASA’s social media followers asks a question during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4222

CAPE CANAVERAL, Fla. -- One of about 45 of NASA’s social media followe...

CAPE CANAVERAL, Fla. -- One of about 45 of NASA’s social media followers asks a question during two days of presentations on the Kennedy Space Center's past, present and future. The social media participan... More

CAPE CANAVERAL, Fla. -- Thomas Engler, deputy manager of the Kennedy Space Center Planning and Development Office, speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4219

CAPE CANAVERAL, Fla. -- Thomas Engler, deputy manager of the Kennedy S...

CAPE CANAVERAL, Fla. -- Thomas Engler, deputy manager of the Kennedy Space Center Planning and Development Office, speaks to about 45 of NASA’s social media followers during two days of presentations on the Ken... More

CAPE CANAVERAL, Fla. -- Stephanie Stilson, NASA flow director for Orbiter Transition and Retirement, speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4220

CAPE CANAVERAL, Fla. -- Stephanie Stilson, NASA flow director for Orbi...

CAPE CANAVERAL, Fla. -- Stephanie Stilson, NASA flow director for Orbiter Transition and Retirement, speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy Space Cen... More

CAPE CANAVERAL, Fla. -- NASA Administrator Charles Bolden speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Kim Shiflett KSC-2012-4252

CAPE CANAVERAL, Fla. -- NASA Administrator Charles Bolden speaks to ab...

CAPE CANAVERAL, Fla. -- NASA Administrator Charles Bolden speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media pa... More

CAPE CANAVERAL, Fla. -- Dr. Lesley Fletcher, Kennedy Space Center deputy division chief for Education Programs, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4259

CAPE CANAVERAL, Fla. -- Dr. Lesley Fletcher, Kennedy Space Center depu...

CAPE CANAVERAL, Fla. -- Dr. Lesley Fletcher, Kennedy Space Center deputy division chief for Education Programs, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy's... More

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers respond to remarks by NASA Administrator Charles Bolden during two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4256

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers resp...

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers respond to remarks by NASA Administrator Charles Bolden during two days of presentations on the Kennedy's past, present and future. The soc... More

CAPE CANAVERAL, Fla. -- Si Song, East Coast Spacecraft Integration Lead for United Launch Alliance, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4258

CAPE CANAVERAL, Fla. -- Si Song, East Coast Spacecraft Integration Lea...

CAPE CANAVERAL, Fla. -- Si Song, East Coast Spacecraft Integration Lead for United Launch Alliance, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center'... More

CAPE CANAVERAL, Fla. -- NASA Administrator Charles Bolden speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Kim Shiflett KSC-2012-4251

CAPE CANAVERAL, Fla. -- NASA Administrator Charles Bolden speaks to ab...

CAPE CANAVERAL, Fla. -- NASA Administrator Charles Bolden speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media pa... More

CAPE CANAVERAL, Fla. -- NASA Public Affairs Officer George Diller speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Kim Shiflett KSC-2012-4250

CAPE CANAVERAL, Fla. -- NASA Public Affairs Officer George Diller spea...

CAPE CANAVERAL, Fla. -- NASA Public Affairs Officer George Diller speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social ... More

CAPE CANAVERAL, Fla. -- Amanda Mitskevich, program manager for NASA's Launch Services Program, speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4225

CAPE CANAVERAL, Fla. -- Amanda Mitskevich, program manager for NASA's ...

CAPE CANAVERAL, Fla. -- Amanda Mitskevich, program manager for NASA's Launch Services Program, speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present... More

CAPE CANAVERAL, Fla. -- Dr. Liz Warren, communications coordinator for the International Space Station program Science Office, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4218

CAPE CANAVERAL, Fla. -- Dr. Liz Warren, communications coordinator for...

CAPE CANAVERAL, Fla. -- Dr. Liz Warren, communications coordinator for the International Space Station program Science Office, speaks to about 45 of NASA’s social media followers for two days of presentations o... More

CAPE CANAVERAL, Fla. -- Scott Colloredo, chief architect for the Kennedy Space Center's Ground System Development and Operations Program, speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4221

CAPE CANAVERAL, Fla. -- Scott Colloredo, chief architect for the Kenne...

CAPE CANAVERAL, Fla. -- Scott Colloredo, chief architect for the Kennedy Space Center's Ground System Development and Operations Program, speaks to about 45 of NASA’s social media followers during two days of p... More

CAPE CANAVERAL, Fla. -- Several of the 45 of NASA social media followers photograph a speaker during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4226

CAPE CANAVERAL, Fla. -- Several of the 45 of NASA social media followe...

CAPE CANAVERAL, Fla. -- Several of the 45 of NASA social media followers photograph a speaker during two days of presentations on the Kennedy Space Center's past, present and future. The social media parti... More

CAPE CANAVERAL, Fla. -- Amanda Mitskevich, program manager for NASA's Launch Services Program, speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4224

CAPE CANAVERAL, Fla. -- Amanda Mitskevich, program manager for NASA's ...

CAPE CANAVERAL, Fla. -- Amanda Mitskevich, program manager for NASA's Launch Services Program, speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present... More

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers respond to a speaker during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4216

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers resp...

CAPE CANAVERAL, Fla. -- About 45 of NASA’s social media followers respond to a speaker during two days of presentations on the Kennedy Space Center's past, present and future. The social media participants... More

CAPE CANAVERAL, Fla. -- Dr. Liz Warren, communications coordinator for the International Space Station program Science office, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4217

CAPE CANAVERAL, Fla. -- Dr. Liz Warren, communications coordinator for...

CAPE CANAVERAL, Fla. -- Dr. Liz Warren, communications coordinator for the International Space Station program Science office, speaks to about 45 of NASA’s social media followers for two days of presentations o... More

CAPE CANAVERAL, Fla. -- Caley Burke, NASA Flight Design and Flight Controls engineer, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4257

CAPE CANAVERAL, Fla. -- Caley Burke, NASA Flight Design and Flight Con...

CAPE CANAVERAL, Fla. -- Caley Burke, NASA Flight Design and Flight Controls engineer, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy Space Center's past, presen... More

CAPE CANAVERAL, Fla. -- NASA Administrator Charles Bolden speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4255

CAPE CANAVERAL, Fla. -- NASA Administrator Charles Bolden speaks to ab...

CAPE CANAVERAL, Fla. -- NASA Administrator Charles Bolden speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media pa... More

CAPE CANAVERAL, Fla. -- NASA Public Affairs Officer George Diller speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4223

CAPE CANAVERAL, Fla. -- NASA Public Affairs Officer George Diller spea...

CAPE CANAVERAL, Fla. -- NASA Public Affairs Officer George Diller speaks to about 45 of NASA’s social media followers during two days of presentations on the Kennedy's past, present and future. The social ... More

CAPE CANAVERAL, Fla. -- Jim Adams, NASA deputy chief technologist, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy's past, present and future. The social media participants gathered at the Florida spaceport on Aug. 2 and 3, 2012 to hear from key former and current leaders who related stories of the space agency's efforts to explore the unknown. It was the first social media event totally run by Kennedy. Photo credit: NASA/ Gianni Woods KSC-2012-4260

CAPE CANAVERAL, Fla. -- Jim Adams, NASA deputy chief technologist, spe...

CAPE CANAVERAL, Fla. -- Jim Adams, NASA deputy chief technologist, speaks to about 45 of NASA’s social media followers for two days of presentations on the Kennedy's past, present and future. The social me... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA Administrator Charlie Bolden talks to agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. At left is performer Beth Nielson Chapman. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4621

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA Administrator Charlie Bolden talks to agency social media followers during the second day of NASA Social activities revolving around NASA's... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, David Sibeck, NASA Living with a Star mission scientist from Goddard Space Flight Center, talks to agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4611

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Davi...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, David Sibeck, NASA Living with a Star mission scientist from Goddard Space Flight Center, talks to agency social media followers during the seco... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Beth Nielson Chapman performs "The Mighty Night Sky" for agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4619

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Beth...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Beth Nielson Chapman performs "The Mighty Night Sky" for agency social media followers during the second day of NASA Social activities revolving... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, astronaut Leland Melvin, associate administrator of NASA Education, talks to agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4616

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, astr...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, astronaut Leland Melvin, associate administrator of NASA Education, talks to agency social media followers during the second day of NASA Social ... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Nicky Fox, deputy project scientist of NASA's Radiation Belt Storm Probes, or RBSP, mission talks to agency social media followers during the second day of NASA Social activities. The probes are set to launch aboard a United Launch Alliance ULA Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4612

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Nick...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Nicky Fox, deputy project scientist of NASA's Radiation Belt Storm Probes, or RBSP, mission talks to agency social media followers during the se... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Aly Mendoza-Hill, NASA Launch Services Program mission manager, talks to agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4614

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Aly ...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Aly Mendoza-Hill, NASA Launch Services Program mission manager, talks to agency social media followers during the second day of NASA Social acti... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA Administrator Charlie Bolden talks to agency social media followers during the second day of NASA Social activities revolving around the agency's Radiation Belt Storm Probes, or RBSP, mission. At left is performer Beth Nielson Chapman. At right is astronaut Leland Melvin, associate administrator of NASA Education. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Kim Shiflett KSC-2012-4608

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA Administrator Charlie Bolden talks to agency social media followers during the second day of NASA Social activities revolving around the ag... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA Administrator Charlie Bolden talks to agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. At left is performer Beth Nielson Chapman. At right is astronaut Leland Melvin, associate administrator of NASA Education. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4620

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA Administrator Charlie Bolden talks to agency social media followers during the second day of NASA Social activities revolving around NASA's... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, astronaut Leland Melvin, associate administrator of NASA Education, introduces performer Beth Nielson Chapman to agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4617

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, astr...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, astronaut Leland Melvin, associate administrator of NASA Education, introduces performer Beth Nielson Chapman to agency social media followers d... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Barbara Giles, director of NASA's Science Mission Directorate Heliophysics Division, talks to agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4610

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Barb...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Barbara Giles, director of NASA's Science Mission Directorate Heliophysics Division, talks to agency social media followers during the second da... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA Administrator Charlie Bolden talks to agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. At left is performer Beth Nielson Chapman. At right is astronaut Leland Melvin, associate administrator of NASA Education. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4622

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA Administrator Charlie Bolden talks to agency social media followers during the second day of NASA Social activities revolving around NASA's... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, astronaut Leland Melvin, associate administrator of NASA Education, talks to agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4615

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, astr...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, astronaut Leland Melvin, associate administrator of NASA Education, talks to agency social media followers during the second day of NASA Social ... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Jason Townsend of NASA's Social Media Team welcomes agency social media followers to the second day of activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities and share them with their own fan base. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4609

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Jaso...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Jason Townsend of NASA's Social Media Team welcomes agency social media followers to the second day of activities revolving around NASA's Radiat... More

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Dave "Kouch" Kusnierkiewicz, Space Department chief engineer from Johns Hopkins University's Applied Physics Laboratory, talks to agency social media followers during the second day of NASA Social activities revolving around NASA's Radiation Belt Storm Probes, or RBSP, mission. The probes are set to launch aboard a United Launch Alliance, or ULA, Atlas V rocket from nearby Cape Canaveral Air Force Station. About 40 followers were selected to participate in RBSP's prelaunch and launch activities. The RBSP mission will help us understand the sun’s influence on Earth and near-Earth space by studying the Earth’s radiation belts on various scales of space and time. RBSP will begin its mission of exploration of Earth’s Van Allen radiation belts and the extremes of space weather. For more information, visit http://www.nasa.gov/rbsp. Photo credit: NASA/Frankie Martin KSC-2012-4613

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Dave...

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, Dave "Kouch" Kusnierkiewicz, Space Department chief engineer from Johns Hopkins University's Applied Physics Laboratory, talks to agency social ... More

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