CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, technicians assist with the installation of the forward reaction control system (FRCS) on space shuttle Discovery. The FRCS was returned from White Sands Space Harbor in New Mexico where it underwent a complete deservicing and cleaning. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a large crane carries the forward reaction control system (FRCS) close for installation on space shuttle Discovery. The FRCS was returned from White Sands Space Harbor in New Mexico where it underwent a complete deservicing and cleaning. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, technicians ready the forward reaction control system (FRCS) for installation on space shuttle Discovery. The FRCS was returned from White Sands Space Harbor in New Mexico where it underwent a complete deservicing and cleaning. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, technicians ready the forward reaction control system (FRCS) for installation on space shuttle Discovery. The FRCS was returned from White Sands Space Harbor in New Mexico where it underwent a complete deservicing and cleaning. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, the forward reaction control system (FRCS) is installed on space shuttle Discovery. The FRCS was returned from White Sands Space Harbor in New Mexico where it underwent a complete deservicing and cleaning. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, the forward reaction control system (FRCS) is being moved by crane for installation on space shuttle Discovery. The FRCS was returned from White Sands Space Harbor in New Mexico where it underwent a complete deservicing and cleaning. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, technicians assist with the installation of the forward reaction control system (FRCS) on space shuttle Discovery. The FRCS was returned from White Sands Space Harbor in New Mexico where it underwent a complete deservicing and cleaning. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a large crane lowers the forward reaction control system (FRCS) for installation on space shuttle Discovery. The FRCS was returned from White Sands Space Harbor in New Mexico where it underwent a complete deservicing and cleaning. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery and Endeavour, their noses encased in protective plastic where their forward reaction control systems (FRCS) once resided, pause outside Orbiter Processing Facility-3 (OPF-3) for a unique photo opportunity. Discovery, which temporarily was being stored in the Vehicle Assembly Building (VAB), is switching places with Endeavour, which has been undergoing decommissioning in OPF-1. Discovery then will be rolled into OPF-1 and Endeavour into the VAB. In OPF-1, Discovery will undergo further preparations for public display at the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Virginia. Endeavour will be stored in the VAB until October when it will be moved into OPF-2 for further work to get it ready for public display at the California Science Center in Los Angeles. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- In Orbiter Processing Facility-2, or OPF-2, at NASA's Kennedy Space Center in Florida, workers prepare to tow space shuttle Discovery to the Vehicle Assembly Building, or VAB. Protective plastic covers the nose of Discovery where its forward reaction control system (FRCS) once resided. Discovery's FRCS was removed and shipped to White Sands Space Harbor in New Mexico for a full cleaning and deservicing before it is returned to Kennedy and reinstalled. Discovery will be stored inside the VAB for approximately one month while shuttle Atlantis undergoes processing in OPF-2 following its final mission, STS-135. Discovery flew its 39th and final mission, STS-133, in February and March 2011, and currently is being prepared for public display at the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Virginia. For more information about Discovery's Transition and Retirement, visit www.nasa.gov/mission_pages/shuttle/launch/discovery_rss_collection_archive_1.html. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- In Orbiter Processing Facility-2, or OPF-2, at NASA's Kennedy Space Center in Florida, protective plastic covers the nose of space shuttle Discovery where its forward reaction control system (FRCS) once resided. Discovery's FRCS was removed and shipped to White Sands Space Harbor in New Mexico for a full cleaning and deservicing before it is returned to Kennedy and reinstalled. Discovery is being prepared for its move to the Vehicle Assembly Building, or VAB. Discovery will be stored inside the VAB for approximately one month while shuttle Atlantis undergoes processing in OPF-2 following its final mission, STS-135. Discovery flew its 39th and final mission, STS-133, in February and March 2011, and currently is being prepared for public display at the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Virginia. For more information about Discovery's Transition and Retirement, visit www.nasa.gov/mission_pages/shuttle/launch/discovery_rss_collection_archive_1.html. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, protective plastic covers the nose of space shuttle Discovery where its forward reaction control system (FRCS) once resided as it rolls from Orbiter Processing Facility-2, or OPF-2, to the Vehicle Assembly Building, or VAB. Discovery's FRCS was removed and shipped to White Sands Space Harbor in New Mexico for a full cleaning and deservicing before it is returned to Kennedy and reinstalled. Discovery will be stored inside the VAB for approximately one month while shuttle Atlantis undergoes processing in OPF-2 following its final mission, STS-135. Discovery flew its 39th and final mission, STS-133, in February and March 2011, and currently is being prepared for public display at the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Virginia. For more information about Discovery's Transition and Retirement, visit www.nasa.gov/mission_pages/shuttle/launch/discovery_rss_collection_archive_1.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour, its nose encased in protective plastic where its forward reaction control system (FRCS) once resided, is towed out of Orbiter Processing Facility-1 (OPF-1) for its move to the Vehicle Assembly Building (VAB). Endeavour is switching places with shuttle Discovery which temporarily has been stored in the VAB. Both shuttles will stop briefly outside OPF-3 for a "nose-to-nose" photo opportunity. Discovery then will be rolled into OPF-1 and Endeavour into the VAB. In OPF-1, Discovery will undergo further preparations for public display at the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Virginia. Endeavour will be stored in the VAB until October when it will be moved into OPF-2 for further work to get it ready for public display at the California Science Center in Los Angeles. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour, its nose encased in protective plastic where its forward reaction control system (FRCS) once resided, backs out of Orbiter Processing Facility-1 (OPF-1) for its move to the Vehicle Assembly Building (VAB). Endeavour is switching places with shuttle Discovery which temporarily has been stored in the VAB. Both shuttles will stop briefly outside OPF-3 for a "nose-to-nose" photo opportunity. Discovery then will be rolled into OPF-1 and Endeavour into the VAB. In OPF-1, Discovery will undergo further preparations for public display at the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Virginia. Endeavour will be stored in the VAB until October when it will be moved into OPF-2 for further work to get it ready for public display at the California Science Center in Los Angeles. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, operators begin to move space shuttle Endeavour, its nose encased in protective plastic where its forward reaction control system (FRCS) once resided, from Orbiter Processing Facility-1 (OPF-1) to the Vehicle Assembly Building (VAB). Endeavour is switching places with shuttle Discovery which temporarily has been stored in the VAB. Both shuttles will stop briefly outside OPF-3 for a "nose-to-nose" photo opportunity. Discovery then will be rolled into OPF-1 and Endeavour into the VAB. In OPF-1, Discovery will undergo further preparations for public display at the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Virginia. Endeavour will be stored in the VAB until October when it will be moved into OPF-2 for further work to get it ready for public display at the California Science Center in Los Angeles. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann