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CAPE CANAVERAL, Fla. – Media snap photos as space shuttle Discovery, mounted to a Shuttle Carrier Aircraft, slowly rolls along the runway of the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The duo is set to begin their 3 1/2 hour ferry flight to the Washington Dulles International Airport in Virginia at about 7 a.m. EDT. Above the two craft is a NASA helicopter covering the departure. Discovery is leaving Kennedy after more than 28 years of service beginning with its arrival on the space coast Nov. 9, 1983. Discovery first launched to space Aug. 30, 1984, on the STS-41D mission. Discovery is the agency's most-flown shuttle with 39 missions, more than 148 million miles and a total of one year in space. Discovery is set to move to the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center on April 19 where it will be placed on public display. 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/Frankie Martin KSC-2012-2422

CAPE CANAVERAL, Fla. – Media snap photos as space shuttle Discovery, mounted to a Shuttle Carrier Aircraft, slowly rolls along the runway of the Shuttle Landing Facility at NASA's Kennedy Space Center in Florid More

CAPE CANAVERAL, Fla. – Space shuttle Discovery, mounted to a Shuttle Carrier Aircraft, or SCA, takes off from NASA Kennedy Space Center’s Shuttle Landing Facility runway 15 in Florida at 7 a.m. EDT and makes a flyby near the 525-foot-tall Vehicle Assembly Building. The duo is beginning its ferry flight to the Washington Dulles International Airport in Virginia that also includes a flyby of the Space Coast and Washington, D.C. Also flying along with the pair is a T-38 training jet. Discovery is leaving Kennedy after more than 28 years of service beginning with its arrival on the space coast Nov. 9, 1983. Discovery first launched to space Aug. 30, 1984, on the STS-41D mission. Discovery is the agency’s most-flown shuttle with 39 missions, more than 148 million miles and a total of one year in space. Discovery is set to move to the Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va., on April 19 where it will be place on public display. 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 Powers and Rick Wetherington KSC-2012-2459

CAPE CANAVERAL, Fla. – Space shuttle Discovery, mounted to a Shuttle Carrier Aircraft, or SCA, takes off from NASA Kennedy Space Center’s Shuttle Landing Facility runway 15 in Florida at 7 a.m. EDT and makes a More

CAPE CANAVERAL, Fla. – Space shuttle Discovery, mounted to a Shuttle Carrier Aircraft, or SCA, takes off from NASA Kennedy Space Center’s Shuttle Landing Facility runway 15 in Florida at 7 a.m. EDT. The duo is beginning its ferry flight to the Washington Dulles International Airport in Virginia that also includes a flyby of the Space Coast and Washington, D.C. Also flying along with the pair is a T-38 training jet. Discovery is leaving Kennedy after more than 28 years of service beginning with its arrival on the space coast Nov. 9, 1983. Discovery first launched to space Aug. 30, 1984, on the STS-41D mission. Discovery is the agency’s most-flown shuttle with 39 missions, more than 148 million miles and a total of one year in space. Discovery is set to move to the Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va., on April 19 where it will be place on public display. 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 Powers and Rick Wetherington KSC-2012-2458

CAPE CANAVERAL, Fla. – Space shuttle Discovery, mounted to a Shuttle Carrier Aircraft, or SCA, takes off from NASA Kennedy Space Center’s Shuttle Landing Facility runway 15 in Florida at 7 a.m. EDT. The duo is More

CAPE CANAVERAL, Fla. – Space shuttle Discovery, mounted to a Shuttle Carrier Aircraft, rises just after 7 a.m. EDT from the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The duo is beginning their 3 1/2 hour ferry flight to the Washington Dulles International Airport in Virginia. Discovery is leaving Kennedy after more than 28 years of service beginning with its arrival on the space coast Nov. 9, 1983. Discovery first launched to space Aug. 30, 1984, on the STS-41D mission. Discovery is the agency's most-flown shuttle with 39 missions, more than 148 million miles and a total of one year in space. Discovery is set to move to the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center on April 19 where it will be placed on public display. 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/Jim Grossmann KSC-2012-2387

CAPE CANAVERAL, Fla. – Space shuttle Discovery, mounted to a Shuttle Carrier Aircraft, rises just after 7 a.m. EDT from the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The duo is beginni More