CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, three Pratt Whitney Rocketdyne space shuttle main engines (SSMEs) sit on stands inside the Engine Shop, with six more engines lined up behind them. For the first time, all 15 main engines are in the Engine Shop at the same time. They are being prepared for shipment to NASA's Stennis Space Center in Mississippi for storage following the completion of the Space Shuttle Program. The engines are being repurposed for use on NASA’s Space Launch System heavy lift rocket. Photo credit: NASA_Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, all six Pratt Whitney Rocketdyne space shuttle main engines (SSMEs) from space shuttle Endeavour's STS-134 and space shuttle Atlantis' STS-135 missions sit in test cells inside the Engine Shop. For the first time, all 15 main engines are in the Engine Shop at the same time. They are being prepared for shipment to NASA's Stennis Space Center in Mississippi for storage following the completion of the Space Shuttle Program. The engines are being repurposed for use on NASA’s Space Launch System heavy lift rocket. Photo credit: NASA_Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – Lined up in a row, six Pratt Whitney Rocketdyne space shuttle main engines (SSMEs) sit on stands inside the Engine Shop at NASA’s Kennedy Space Center in Florida. For the first time, all 15 main engines are in the Engine Shop at the same time. They are being prepared for shipment to NASA's Stennis Space Center in Mississippi for storage following the completion of the Space Shuttle Program. The engines are being repurposed for use on NASA’s Space Launch System heavy lift rocket. Photo credit: NASA_Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – Media representatives are on hand at the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida for the arrival of the Shuttle Carrier Aircraft. The aircraft, known as an SCA, arrived at 5:35 p.m. EDT to prepare for shuttle Discovery’s ferry flight to the Washington Dulles International Airport in Sterling, Va., on April 17. This SCA, designated NASA 905, is a modified Boeing 747 jet airliner, originally manufactured for commercial use. One of two SCAs employed over the course of the Space Shuttle Program, NASA 905 is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 911 was decommissioned at the NASA Dryden Flight Research Center in California in February. Discovery will be placed on permanent public display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Chantilly, Va. For more information on the SCA, visit http:__www.nasa.gov_centers_dryden_news_FactSheets_FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http:__www.nasa.gov_shuttle. Photo credit: NASA_Frankie Martin

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians assist in securing space shuttle Atlantis’ left orbital maneuvering system (OMS) pod to a sling for removal. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, a crane is used to move space shuttle Atlantis’ left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a large crane and support equipment are lifted high and moved toward space shuttle Atlantis to aid in removal of the left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, large access platforms are being moved into place around space shuttle Atlantis in preparation for removal of the left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians start to position a crane and support equipment near space shuttle Atlantis in preparation for removal of the left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a large crane lowers space shuttle Atlantis’ left orbital maneuvering system (OMS) pod onto a sling. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, large access platforms are being moved into place around space shuttle Atlantis in preparation for removal of the left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a large crane with support equipment lifts the left orbital maneuvering system (OMS) pod away from space shuttle Atlantis. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, a large crane and support equipment are moved toward space shuttle Atlantis in preparation for removal of the left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians position support equipment around space shuttle Atlantis in preparation for removal of the left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians position lifting equipment around space shuttle Atlantis’ left orbital maneuvering system (OMS) pod in order to remove it. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians assist as a large crane lowers space shuttle Atlantis’ left orbital maneuvering system (OMS) pod onto a carrier. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a large crane and support equipment are moved toward space shuttle Atlantis to aid in removal of the left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, large access platforms are being moved into place around space shuttle Atlantis in preparation for removal of the left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a large crane carries space shuttle Atlantis’ left orbital maneuvering system (OMS) pod toward a carrier. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, a large crane and support equipment are lifted high and moved toward space shuttle Atlantis in preparation for removal of the left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a large crane lowers space shuttle Atlantis’ left orbital maneuvering system (OMS) pod onto a carrier. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, one of space shuttle Atlantis’ two orbital maneuvering system (OMS) pods can be seen. Large access platforms are being moved into place around Atlantis in preparation for removal of the left OMS pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, a large crane with support equipment begins to remove space shuttle Atlantis’ left orbital maneuvering system (OMS) pod. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, technicians assist as a large crane lowers space shuttle Atlantis’ left orbital maneuvering system (OMS) pod onto a carrier. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Atlantis. The OMS pods will be sent to White Sands Space Harbor in New Mexico where they will undergo a complete deservicing and cleaning and then be returned to Kennedy for reinstallation on Atlantis. Atlantis is being prepared for display at the Kennedy Space Center Visitor Complex in Florida. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, the right orbital maneuvering system (OMS) pod is being installed on space shuttle Discovery. The OMS pods were returned from White Sands Space Harbor in New Mexico where they 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 right orbital maneuvering system (OMS) pod is installed on space shuttle Discovery. The OMS pods were returned from White Sands Space Harbor in New Mexico where they 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 right orbital maneuvering system (OMS) pod is being installed on space shuttle Discovery. The OMS pods were returned from White Sands Space Harbor in New Mexico where they 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