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CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, platforms on the mate-demate device surround space shuttle Endeavour as preparations are made to roll the Shuttle Carrier Aircraft, or SCA, to which the shuttle is secured away from the structure. The SCA, a modified 747 jetliner, will fly Endeavour to Los Angeles where it will be placed on public display at the California Science Center. This is the final ferry flight scheduled in the Space Shuttle Program era. For more information on the shuttles' transition and retirement, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-5251

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, platforms on the mate-demate device surround space shuttle Endeavour as preparations are made to roll the Shuttl More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery is lifted off the ground into the mate-demate device. Operations are under way to position Discovery on top of a Shuttle Carrier Aircraft in preparation for its departure from Kennedy on Tuesday. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. The SCA designated NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Kim Shiflett KSC-2012-2155

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery is lifted off the ground into the mate-demate device. Operations are under way to positi More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, a crane on the mate-demate device lifts space shuttle Discovery from the ground. Operations are under way to position Discovery on top of a Shuttle Carrier Aircraft in preparation for its departure from Kennedy on Tuesday. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. The SCA designated NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Kim Shiflett KSC-2012-2159

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, a crane on the mate-demate device lifts space shuttle Discovery from the ground. Operations are under way to pos More

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is towed to the Mate-Demate Device, or MDD, at NASA's Kennedy Space Center in Florida after being backed out of the Vehicle Assembly Building. The MDD is located at the Shuttle Landing Facility at Kennedy. The shuttle will be lifted and connected to the top of NASA's Shuttle Carrier Aircraft SCA, a modified 747 jetliner. The shuttle has been fitted with an aerodynamic tailcone for its flight aboard the SCA to Los Angeles where it will be placed on public display. Photo credit: NASA/Kim Shiflett KSC-2012-5066

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is towed to the Mate-Demate Device, or MDD, at NASA's Kennedy Space Center in Florida after being backed out of the Vehicle Assembly Building. The MDD is located a More

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is seen inside the Mate-Demate Device, or MDD, at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The Shuttle Carrier Aircraft, or SCA, is at the lower edge of the ramp. The SCA will carry Endeavour to Los Angeles where it will be placed on public display. Photo credit: NASA/Kim Shiflett KSC-2012-5140

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is seen inside the Mate-Demate Device, or MDD, at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The Shuttle Carrier Aircraft, or SCA, is More

CAPE CANAVERAL, Fla. – As the dawn breaks over the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, preparations are under way to back NASA's Shuttle Carrier Aircraft, or SCA, away from the mate-demate device. Space shuttle Endeavour has been fitted with an aerodynamic tailcone and secured atop the aircraft for its upcoming ferry flight. The SCA, a modified 747 jetliner, will fly Endeavour to Los Angeles where it will be placed on public display at the California Science Center. This is the final ferry flight scheduled in the Space Shuttle Program era. For more information on the shuttles' transition and retirement, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-5240

CAPE CANAVERAL, Fla. – As the dawn breaks over the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, preparations are under way to back NASA's Shuttle Carrier Aircraft, or SCA, away from the m More

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is towed into the Mate-Demate Device, or MDD, at NASA's Kennedy Space Center in Florida. The MDD will be used to lift and connect the shuttle to the top of NASA's Shuttle Carrier Aircraft SCA, a modified 747 jetliner. The shuttle has been fitted with an aerodynamic tailcone for its flight aboard the SCA to Los Angeles where it will be placed on public display. The shuttle was towed from the Vehicle Assembly Building. Photo credit: NASA/Kim Shiflett KSC-2012-5104

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is towed into the Mate-Demate Device, or MDD, at NASA's Kennedy Space Center in Florida. The MDD will be used to lift and connect the shuttle to the top of NASA's More

CAPE CANAVERAL, Fla. – A United Space Alliance technician prepares to attach space shuttle Endeavour to the mate-demate device at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The shuttle will be positioned and connected to the top of NASA's Shuttle Carrier Aircraft, or SCA, with the aid of the device. The SCA can be seen on the pavement in the background. The SCA, a modified 747 jetliner, will fly Endeavour to Los Angeles where it will be placed on public display at the California Science Center. This is the final ferry flight scheduled in the Space Shuttle Program era. For more information on the shuttles' transition and retirement, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-5180

CAPE CANAVERAL, Fla. – A United Space Alliance technician prepares to attach space shuttle Endeavour to the mate-demate device at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The shut More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, a worker guides the Shuttle Carrier Aircraft into position under space shuttle Discovery suspended in the mate-demate device. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. This SCA, designated NASA 905, is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Tim Jacobs KSC-2012-2244

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, a worker guides the Shuttle Carrier Aircraft into position under space shuttle Discovery suspended in the mate-d More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, workers secure a sling to space shuttle Discovery in order to lift it onto the top of a Shuttle Carrier Aircraft with the aid of the mate-demate device. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. The SCA designated NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-2126

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, workers secure a sling to space shuttle Discovery in order to lift it onto the top of a Shuttle Carrier Aircraft More

CAPE CANAVERAL, Fla. – Daybreak at the Shuttle Landing Facility, or SLF, at NASA’s Kennedy Space Center in Florida finds preparations under way to lift space shuttle Discovery onto the back of the Shuttle Carrier Aircraft in the background. The lift will be accomplished with the aid of a mate-demate device, or MDD, a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of an SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. This SCA, designated NASA 905, is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. Discovery’s new home will be the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Chantilly, Va. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Kim Shiflett KSC-2012-2088

CAPE CANAVERAL, Fla. – Daybreak at the Shuttle Landing Facility, or SLF, at NASA’s Kennedy Space Center in Florida finds preparations under way to lift space shuttle Discovery onto the back of the Shuttle Carri More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, workers attach space shuttle Discovery to the Shuttle Carrier Aircraft in the mate-demate device. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. This SCA, designated NASA 905, is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-2240

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, workers attach space shuttle Discovery to the Shuttle Carrier Aircraft in the mate-demate device. The device, More

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is towed into the Mate-Demate Device, or MDD, at NASA's Kennedy Space Center in Florida. The MDD will be used to lift and connect the shuttle to the top of NASA's Shuttle Carrier Aircraft SCA, a modified 747 jetliner. The shuttle has been fitted with an aerodynamic tailcone for its flight aboard the SCA to Los Angeles where it will be placed on public display. The shuttle was towed from the Vehicle Assembly Building. Photo credit: NASA/Kim Shiflett KSC-2012-5105

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is towed into the Mate-Demate Device, or MDD, at NASA's Kennedy Space Center in Florida. The MDD will be used to lift and connect the shuttle to the top of NASA's More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery is suspended 60 feet off the ground inside the mate-demate device in preparation for the arrival of the Shuttle Carrier Aircraft, in the background. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. The SCA designated NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-2200

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery is suspended 60 feet off the ground inside the mate-demate device in preparation for the More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, the space shuttle Endeavour, mounted atop NASA's Shuttle Carrier Aircraft, or SCA, has rolled back from the mate-demate device in preparation for its ferry flight to California. In the foreground is a NASA T-38 jet. The SCA, a modified 747 jetliner, will fly Endeavour to Los Angeles where it will be placed on public display at the California Science Center. This is the final ferry flight scheduled in the Space Shuttle Program era. For more information on the shuttles' transition and retirement, visit http://www.nasa.gov/transition. Photo credit: NASA/ Dimitri Gerondidakis KSC-2012-5306

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, the space shuttle Endeavour, mounted atop NASA's Shuttle Carrier Aircraft, or SCA, has rolled back from the mate More

CAPE CANAVERAL, Fla. – As the sun comes up over the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery is suspended above the ground at the mate-demate device during operations to place it on top of a Shuttle Carrier Aircraft. A tail cone has been installed over Discovery’s three replica shuttle main engines to reduce aerodynamic drag and turbulence during the ferry flight. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. The SCA designated NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Kim Shiflett KSC-2012-2167

CAPE CANAVERAL, Fla. – As the sun comes up over the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery is suspended above the ground at the mate-demate device during ope More

CAPE CANAVERAL, Fla. – Space shuttle Discovery approaches the mate-demate device, or MDD, at the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida. The MDD is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of a Shuttle Carrier Aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. The SCA designated NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. Discovery’s new home will be the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Chantilly, Va. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-2096

CAPE CANAVERAL, Fla. – Space shuttle Discovery approaches the mate-demate device, or MDD, at the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida. The MDD is a large gantry-like steel str More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery is raised into the mate-demate device during operations to place it on top of a Shuttle Carrier Aircraft. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. The SCA designated NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Kim Shiflett KSC-2012-2168

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery is raised into the mate-demate device during operations to place it on top of a Shuttle More

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Shuttle Landing Facility, the 747 Shuttle Carrier Aircraft with space shuttle Discovery on top is towed toward the mate-demate device. The piggybacked shuttle and aircraft touched down on runway 33 at 12:05 p.m. EDT. Discovery landed at Edwards Air Force Base in California on Sept. 11 after the 13-day STS-128 mission to the International Space Station. Landings at Kennedy were waved off on two days due to inclement weather, leading to the landing at Edwards. The two-day return flight from California began at 9:20 a.m. EDT Sept. 20. Photo credit: NASA/Kim Shiflett KSC-2009-5160

CAPE CANAVERAL, Fla. – At NASA Kennedy Space Center's Shuttle Landing Facility, the 747 Shuttle Carrier Aircraft with space shuttle Discovery on top is towed toward the mate-demate device. The piggybacked shu More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, workers prepare to tow a Shuttle Carrier Aircraft to the mate-demate device for mating with space shuttle Discovery. This SCA, designated NASA 905, is a Boeing 747 jet originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. Discovery’s new home will be the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Chantilly, Va. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Kim Shiflett KSC-2012-2209

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, workers prepare to tow a Shuttle Carrier Aircraft to the mate-demate device for mating with space shuttle Discov More

CAPE CANAVERAL, Fla. – Sunrise at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida finds space shuttle Endeavour secured atop NASA's Shuttle Carrier Aircraft, or SCA. Preparations are under way to roll them away from the mate-demate device surrounding them. The SCA, a modified 747 jetliner, will fly Endeavour to Los Angeles where it will be placed on public display at the California Science Center. This is the final ferry flight scheduled in the Space Shuttle Program era. For more information on the shuttles' transition and retirement, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-5243

CAPE CANAVERAL, Fla. – Sunrise at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida finds space shuttle Endeavour secured atop NASA's Shuttle Carrier Aircraft, or SCA. Preparations are unde More

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is seen inside the Mate-Demate Device, or MDD, at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The Shuttle Carrier Aircraft, or SCA, is seen on the ramp. The SCA will carry Endeavour to Los Angeles where it will be placed on public display. Photo credit: NASA/Kim Shiflett KSC-2012-5146

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is seen inside the Mate-Demate Device, or MDD, at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The Shuttle Carrier Aircraft, or SCA, is More

CAPE CANAVERAL, Fla. – As the sun rises, preparations are under way for the Shuttle Carrier Aircraft carrying space shuttle Discovery to back out of the Shuttle Landing Facility's mate-demate device at NASA’s Kennedy Space Center in Florida. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet that was originally manufactured for commercial use and modified by NASA to transport the shuttles between destinations on Earth. This SCA, designated NASA 905, is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Kim Shiflett KSC-2012-2250

CAPE CANAVERAL, Fla. – As the sun rises, preparations are under way for the Shuttle Carrier Aircraft carrying space shuttle Discovery to back out of the Shuttle Landing Facility's mate-demate device at NASA’s K More

CAPE CANAVERAL, Fla. – Space Shuttle Discovery’s move from the Vehicle Assembly Building to the Shuttle Landing Facility, or SLF, is complete as the sun comes up over NASA’s Kennedy Space Center in Florida. A tail cone has been installed over its three replica shuttle main engines to reduce aerodynamic drag and turbulence during its upcoming ferry flight. At the SLF, Discovery will be hoisted onto a Shuttle Carrier Aircraft, or SCA, with the aid of a mate-demate device. The SCA, a modified Boeing 747 jet airliner, is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on permanent public display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-2100

CAPE CANAVERAL, Fla. – Space Shuttle Discovery’s move from the Vehicle Assembly Building to the Shuttle Landing Facility, or SLF, is complete as the sun comes up over NASA’s Kennedy Space Center in Florida. A t More

CAPE CANAVERAL, Fla. – Before daybreak at the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery hovers above the ground at the mate-demate device. Operations are under way to position Discovery on top of a Shuttle Carrier Aircraft in preparation for its departure from Kennedy on Tuesday. A tail cone has been installed over Discovery’s three replica shuttle main engines to reduce aerodynamic drag and turbulence during the ferry flight. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. The SCA designated NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-2177

CAPE CANAVERAL, Fla. – Before daybreak at the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery hovers above the ground at the mate-demate device. Operations are under More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, the Shuttle Carrier Aircraft moves into position under space shuttle Discovery suspended 60 feet off the ground in the mate-demate device. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. This SCA, designated NASA 905, is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-2232

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, the Shuttle Carrier Aircraft moves into position under space shuttle Discovery suspended 60 feet off the ground More

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is seen inside the Mate-Demate Device, or MDD, at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The center's Vehicle Assembly Building, or VAB, and the mobile launcher built for the Space Launch System are also visible in the background. The SCA will carry Endeavour to Los Angeles where it will be placed on public display. Photo credit: NASA/Kim Shiflett KSC-2012-5150

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is seen inside the Mate-Demate Device, or MDD, at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The center's Vehicle Assembly Building, o More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery is suspended 60 feet off the ground inside the mate-demate device in preparation for the arrival of the Shuttle Carrier Aircraft. The device, known as the MDD, is a large gantry-like steel structure used to hoist a shuttle off the ground and position it onto the back of the aircraft, or SCA. The SCA is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. The SCA designated NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-2201

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida, space shuttle Discovery is suspended 60 feet off the ground inside the mate-demate device in preparation for the More

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is lifted into the mate-demate device at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The shuttle will be positioned and connected to the top of NASA's Shuttle Carrier Aircraft, or SCA, with the aid of the device. The SCA is in the background behind Endeavour. The SCA, a modified 747 jetliner, will fly Endeavour to Los Angeles where it will be placed on public display at the California Science Center. This is the final ferry flight scheduled in the Space Shuttle Program era. For more information on the shuttles' transition and retirement, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis KSC-2012-5194

CAPE CANAVERAL, Fla. – Space shuttle Endeavour is lifted into the mate-demate device at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The shuttle will be positioned and connected to th More

CAPE CANAVERAL, Fla. – Workers escort space shuttle Endeavour as it is towed to the Mate-Demate Device, or MDD, at NASA's Kennedy Space Center in Florida after being backed out of the Vehicle Assembly Building. The MDD is located at the Shuttle Landing Facility at Kennedy. The shuttle will be lifted and connected to the top of NASA's Shuttle Carrier Aircraft SCA, a modified 747 jetliner. The shuttle has been fitted with an aerodynamic tailcone for its flight aboard the SCA to Los Angeles where it will be placed on public display. Photo credit: NASA/ Frankie Martin KSC-2012-5083

CAPE CANAVERAL, Fla. – Workers escort space shuttle Endeavour as it is towed to the Mate-Demate Device, or MDD, at NASA's Kennedy Space Center in Florida after being backed out of the Vehicle Assembly Building. More