In Orbiter Processing Facility bay 2, technicians Jesus Rodrigues (left) and James Johnson install a leading edge subsystem carrier panel on the right wing of Endeavour. The orbiter is scheduled for mission STS-118, targeted for launch on June 28. The mission will be the 22nd flight to the International Space Station, carrying another starboard array, S5, for installation.

In Orbiter Processing Facility bay 2, technicians James Johnson (left) and Jesus Rodrigues install a leading edge subsystem carrier panel on the right wing of Endeavour. The orbiter is scheduled for mission STS-118, targeted for launch on June 28. The mission will be the 22nd flight to the International Space Station, carrying another starboard array, S5, for installation.

jsc2022e089168 (Nov. 21, 2022) During flight day 6 of the 25.5-day Artemis I mission, Lead Flight Director Rick LaBrode monitors the progress of the Outbound Powered Flyby (OPF) in the White Flight Control Room at Johnson Space Center in Houston. burn monitored by. The OPF burn set Orion on a course to fly by the Moon at a closest distance of 81 miles (130.5 kilometers).

In Orbiter Processing Facility bay 2, technicians on a Hyster forklift install space shuttle main engine no. 3 into Endeavour. Each space shuttle main engine is 14 feet long, weighs about 6,700 pounds, and is 7.5 feet in diameter at the end of the nozzle. The orbiter is scheduled for mission STS-118, targeted for launch on June 28. The mission will be the 22nd flight to the International Space Station, carrying another starboard array, S5, for installation.

In Orbiter Processing Facility bay 2, technicians on a Hyster forklift maneuver space shuttle main engine no. 3 into place on Endeavour. Each space shuttle main engine is 14 feet long, weighs about 6,700 pounds, and is 7.5 feet in diameter at the end of the nozzle. The orbiter is scheduled for mission STS-118, targeted for launch on June 28. The mission will be the 22nd flight to the International Space Station, carrying another starboard array, S5, for installation.

In Orbiter Processing Facility bay 2, technicians on a Hyster forklift maneuver space shuttle main engine no. 3 into place on Endeavour. Each space shuttle main engine is 14 feet long, weighs about 6,700 pounds, and is 7.5 feet in diameter at the end of the nozzle. The orbiter is scheduled for mission STS-118, targeted for launch on June 28. The mission will be the 22nd flight to the International Space Station, carrying another starboard array, S5, for installation.

View of OPF High Bay No. 2 construction, 1976

STS-132 ATLANTIS - ENGINE #2 LIFT TO TRANSPORTERAT ENGINE SHOP - XFER TO OPF-1 & INSTALL

STS-132 ATLANTIS - ENGINE #2 LIFT TO TRANSPORTERAT ENGINE SHOP - XFER TO OPF-1 & INSTALL

STS-132 ATLANTIS - ENGINE #2 LIFT TO TRANSPORTERAT ENGINE SHOP - XFER TO OPF-1 & INSTALL

STS-132 ATLANTIS - ENGINE #2 LIFT TO TRANSPORTERAT ENGINE SHOP - XFER TO OPF-1 & INSTALL

STS-132 ATLANTIS - ENGINE #2 LIFT TO TRANSPORTERAT ENGINE SHOP - XFER TO OPF-1 & INSTALL

STS-132 ATLANTIS - ENGINE #2 LIFT TO TRANSPORTERAT ENGINE SHOP - XFER TO OPF-1 & INSTALL

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery backs through the open door of the Vehicle Assembly Building (VAB) into public view, beginning its move to Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, United Space Alliance employees accompany space shuttle Discovery as it is towed from the Vehicle Assembly Building (VAB), beginning its move to Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- Seen through the open bay door of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida, space shuttle Discovery is being prepared for its move to Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, work has begun to move space shuttle Discovery from the Vehicle Assembly Building (VAB) to Orbiter Processing Facility-1 (OPF-1), seen in the background. Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery rounds a curve as it is towed from the 525-foot-tall Vehicle Assembly Building (VAB) to Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- Seen through the open bay door of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida, space shuttle Discovery is being prepared for its move to Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery makes a three-point turnaround outside the Vehicle Assembly Building (VAB), beginning its move to Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, preparations have begun to move space shuttle Discovery from the Vehicle Assembly Building (VAB) to Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, preparations are under way to move space shuttle Discovery from the Vehicle Assembly Building (VAB) to Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery, at right, approaches shuttle Endeavour outside Orbiter Processing Facility-3 (OPF-3). Discovery, which temporarily was being stored in the Vehicle Assembly Building (VAB), is switching places with Endeavour, which has been undergoing decommissioning in Orbiter Processing Facility-1 (OPF-1). 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 Discovery stops outside the 525-foot-tall Vehicle Assembly Building (VAB), awaiting the arrival of shuttle Endeavour, during its move to the Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery backs through the open door of the Vehicle Assembly Building (VAB) beginning its move to Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery is towed from the 525-foot-tall Vehicle Assembly Building (VAB), beginning its move to Orbiter Processing Facility-1 (OPF-1). Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning activities in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery continues its trip to Orbiter Processing Facility-1 (OPF-1) after stopping for a unique "nose-to-nose" photo opportunity outside OPF-3 with shuttle Endeavour. Endeavour nears the open bay door of the Vehicle Assembly Building (VAB), at right. Discovery, which temporarily was being stored in the VAB, is switching places with Endeavour, which has been undergoing decommissioning in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery, at right, and Endeavour pause outside Orbiter Processing Facility-3 (OPF-3) for a unique "nose-to-nose" 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. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour backs out of Orbiter Processing Facility-1 (OPF-1) into public view. Endeavour is switching places with shuttle Discovery which temporarily has been housed in the Vehicle Assembly Building (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 shuttles Discovery, at right, and Endeavour are parked "nose-to-nose" outside Orbiter Processing Facility-3 (OPF-3) during 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. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery, at right, and Endeavour pause outside Orbiter Processing Facility-3 (OPF-3) for a unique "nose-to-nose" 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. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour backs out of Orbiter Processing Facility-1 (OPF-1). Endeavour is switching places with shuttle Discovery which temporarily has been housed in the Vehicle Assembly Building (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. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery nears Orbiter Processing Facility-1 (OPF-1). Discovery, which temporarily was being stored in the Vehicle Assembly Building (VAB), is swapping places with Endeavour, which has been undergoing decommissioning in OPF-1. The shuttles stopped briefly outside OPF-3 for a unique "nose-to-nose" photo opportunity. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery rolls out of the Vehicle Assembly Building (VAB) where it temporarily has been stored. Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning in Orbiter Processing Facility-1 (OPF-1). 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. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour backs out of Orbiter Processing Facility-1 (OPF-1). Endeavour is switching places with shuttle Discovery which temporarily has been housed in the Vehicle Assembly Building (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. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour, in the distance, approaches shuttle Discovery during its move to the Vehicle Assembly Building (VAB). Discovery is switching places with Endeavour which has been undergoing decommissioning activities in Orbiter Processing Facility-1 (OPF-1). 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, a banner in Orbiter Processing Facility-1 (OPF-1) proclaims the pride of the center's employees as preparations are made to move space shuttle Endeavour 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, the aft end of space shuttle Endeavour appears as it backs out of Orbiter Processing Facility-1 (OPF-1). Endeavour is switching places with shuttle Discovery which temporarily has been housed in the Vehicle Assembly Building (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. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery rolls out of the Vehicle Assembly Building (VAB) past employees and media representatives on its way to rendezvous with shuttle Endeavour. Discovery is switching places with Endeavour which has been undergoing decommissioning in Orbiter Processing Facility-1 (OPF-1). 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. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, a spacecraft technician, standing beneath the thermal protection system tile on the underbelly of space shuttle Endeavour, prepares to support the spacecraft's move 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

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour, in the distance, approaches shuttle Discovery during its move to the Vehicle Assembly Building (VAB). Discovery is switching places with Endeavour which has been undergoing decommissioning activities in Orbiter Processing Facility-1 (OPF-1). 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour backs out of Orbiter Processing Facility-1 (OPF-1) for a short jaunt to the Vehicle Assembly Building (VAB), in the background. 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 Discovery leaves the Vehicle Assembly Building (VAB) behind for a rendezvous with shuttle Endeavour. Discovery is switching places with Endeavour which has been undergoing decommissioning in Orbiter Processing Facility-1 (OPF-1). 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. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery, at right, and Endeavour part company outside Orbiter Processing Facility-3 (OPF-3) where they paused for a unique "nose-to-nose" 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 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 shuttles Discovery and Endeavour continue on their separate ways outside Orbiter Processing Facility-3 (OPF-3) where they paused for a unique "nose-to-nose" 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 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery arrives outside Orbiter Processing Facility-1 (OPF-1) after stopping for a unique "nose-to-nose" photo opportunity outside OPF-3 with shuttle Endeavour. Discovery, which temporarily was being stored in the VAB, is switching places with Endeavour, which has been undergoing decommissioning in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery, at right, and Endeavour go their separate ways outside Orbiter Processing Facility-3 (OPF-3) where they paused for a unique "nose-to-nose" 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 will be rolled into OPF-1 and Endeavour into the VAB. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour sits outside Orbiter Processing Facility-1 (OPF-1), ready for its short jaunt 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, in the distance, approaches shuttle Discovery during its move to the Vehicle Assembly Building (VAB). Discovery is switching places with Endeavour which has been undergoing decommissioning activities in Orbiter Processing Facility-1 (OPF-1). 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/Dimitri Gerondidakis

In this aerial view looking south can be seen Launch Complex (LC) 39 area, where assembly, checkout and launch of the Space Shuttle Orbiter and its External Tank and twin Solid Rocket Boosters take place. Central to the complex is the tallest building at the center, the Vehicle Assembly Building (VAB). To the immediate left, from top to bottom, are the Orbiter Processing Facility (OPF) High Bay 3 and new engine shop (north side), OPF Modular Office Building, Thermal Protection System Facility, and a crawler-transporter (to its left). In front of the VAB are OPF 1 and OPF 2. At right is the Processing Control Center. West of OPF 3 is the Mobile Launch Platform. In the upper left corner is Launch Pad B; at the far right is the turn basin, with the Press Site located just below it to the right.

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery, at left, and Endeavour stop outside Orbiter Processing Facility-3 (OPF-3) for a unique "nose-to-nose" 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. -- At NASA's Kennedy Space Center in Florida, employees and media representatives set up their cameras to capture space shuttles Discovery, at left, and Endeavour outside Orbiter Processing Facility-3 (OPF-3) during a unique "nose-to-nose" 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. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour vacates the work platforms of Orbiter Processing Facility-1 (OPF-1) to make way for shuttle Discovery. Endeavour is switching places with Discovery which temporarily has been stored in the Vehicle Assembly Building (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, preparations are under way to move space shuttle Endeavour 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

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery, at top, and Endeavour pause outside Orbiter Processing Facility-3 (OPF-3) for a unique "nose-to-nose" 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. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery and Endeavour part company outside Orbiter Processing Facility-3 (OPF-3) where they paused for a unique "nose-to-nose" 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 will be rolled into OPF-1 and Endeavour into the VAB. The image was taken from the top of 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/Frankie Martin

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. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery and Endeavour stop 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. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery rolls out of the Vehicle Assembly Building (VAB) past employees and media representatives eager to take a few photographs. Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning in Orbiter Processing Facility-1 (OPF-1). 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. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery and Endeavour go their separate ways outside Orbiter Processing Facility-3 (OPF-3) where they paused for a unique "nose-to-nose" 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 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 Discovery arrives outside Orbiter Processing Facility-1 (OPF-1) after stopping for a unique "nose-to-nose" photo opportunity outside OPF-3 with shuttle Endeavour. Discovery, which temporarily was being stored in the VAB, is switching places with Endeavour, which has been undergoing decommissioning in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery, at right, and Endeavour switch places. The shuttles stopped briefly outside Orbiter Processing Facility-3 (OPF-3) for a unique "nose-to-nose" photo opportunity. Discovery, which temporarily was being stored in the Vehicle Assembly Building (VAB), is swapping places with Endeavour, which has been undergoing decommissioning in OPF-1. Discovery will be rolled into OPF-1 and Endeavour into the VAB. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, the aft end of space shuttle Endeavour appears as it backs out of Orbiter Processing Facility-1 (OPF-1). Endeavour is switching places with shuttle Discovery which temporarily has been housed in the Vehicle Assembly Building (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, United Space Alliance workers continue towing space shuttle Discovery to Orbiter Processing Facility-1 (OPF-1) after stopping for a unique "nose-to-nose" photo opportunity outside OPF-3 with shuttle Endeavour. Endeavour nears the open bay door of the Vehicle Assembly Building (VAB), at right. Discovery, which temporarily was being stored in the VAB, is switching places with Endeavour, which has been undergoing decommissioning in OPF-1. 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery, at right, and Endeavour are parked "nose-to-nose" outside Orbiter Processing Facility-3 (OPF-3) during 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, United Space Alliance employees accompany space shuttle Endeavour as it is towed 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

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttles Discovery and Endeavour resume their respective journeys outside Orbiter Processing Facility-3 (OPF-3) where they paused for a unique "nose-to-nose" 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 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 shuttles Discovery and Endeavour continue on their separate ways outside Orbiter Processing Facility-3 (OPF-3) where they paused for a unique "nose-to-nose" 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 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour backs out of Orbiter Processing Facility-1 (OPF-1). Endeavour is switching places with shuttle Discovery which temporarily has been housed in the Vehicle Assembly Building (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. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Discovery rolls out of the Vehicle Assembly Building (VAB) where it temporarily has been stored. Discovery is switching places with shuttle Endeavour which has been undergoing decommissioning in Orbiter Processing Facility-1 (OPF-1). 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. The image was taken from the top of 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/Frankie Martin

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, space shuttle Endeavour creeps toward the open door of Orbiter Processing Facility-1 (OPF-1), beginning 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 sits outside Orbiter Processing Facility-1 (OPF-1), seemingly pointed at 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. -- Space shuttle Atlantis casts a wide shadow as it approaches the 525-foot-tall Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida on its move from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis backs into the transfer aisle of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida on its move from Orbiter Processing Facility-2 . Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis rolls to a stop in the transfer aisle of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida, following its move from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Preparations are under way in Orbiter Processing Facility-2 to roll space shuttle Atlantis to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- Space shuttle workers line up shuttle Atlantis for its move into the transfer aisle of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis is being moved to the VAB from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- The tail fin of space shuttle Atlantis emerges through the open door of Orbiter Processing Facility-2 on its move to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- Protective plastic flanks the nose of space shuttle Atlantis for its move from Orbiter Processing Facility-2 to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis arrives in the transfer aisle of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida on its move from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Protective plastic flanks the nose of space shuttle Atlantis for its move from Orbiter Processing Facility-2 to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional 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 awaits transfer from the Vehicle Assembly Building (VAB), where it is being stored, to Orbiter Processing Facility-2. Transition and retirement processing then will resume on Endeavour for its public display at the California Science Center in Los Angeles. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis basks in the sunshine outside Orbiter Processing Facility-2 on its move to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Slowly, carefully, space shuttle Atlantis backs away from the work platforms in Orbiter Processing Facility-2 on its move to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis is parked in the transfer aisle of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida, following its move from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis is pushed away from the work platforms in Orbiter Processing Facility-2 on its move to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Preparations are under way in Orbiter Processing Facility-2 to roll space shuttle Atlantis to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis backs into the transfer aisle of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida on its move from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- Preparations are under way in Orbiter Processing Facility-2 to move space shuttle Atlantis to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Preparations are under way to roll space shuttle Atlantis tail first into the transfer aisle of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida during its move from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis backs through the open door of Orbiter Processing Facility-2 on its move to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- The tail fin of space shuttle Atlantis emerges through the open door of Orbiter Processing Facility-2 on its move to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Space shuttle Endeavour (in the background) seems to proclaim "We're behind you, Atlantis" as space shuttle Atlantis rolls into the transfer aisle of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida, following its move from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Workers push space shuttle Atlantis away from the work platforms in Orbiter Processing Facility-2 for its move to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis is repositioned to back into the transfer aisle of the 525-foot-tall Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida during its transfer from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis arrives at the 525-foot-tall Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida on its move from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis backs toward the open door of the transfer aisle of the 525-foot-tall Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis is being moved to the VAB from Orbiter Processing Facility-2. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis, strongbacks lining its payload bay doors, executes a three-point turnaround outside Orbiter Processing Facility-2 on its move to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Space shuttle Atlantis executes a three-point turnaround outside Orbiter Processing Facility-2 on its move to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. In the background is the 525-foot-tall VAB. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. -- A worker acts as spotter for space shuttle Atlantis as it is backed out from under the work platforms in Orbiter Processing Facility-2 on its move to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Atlantis will be stored temporarily in the VAB while transition and retirement processing resumes on shuttle Endeavour in the processing hangar. Endeavour is being prepared for public display at the California Science Center in Los Angeles. A groundbreaking was held Jan. 18 for Atlantis' future home -- a 65,000-square-foot exhibit in Shuttle Plaza at the Kennedy Space Center Visitor Complex. For additional information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann