CAPE CANAVERAL, Fla. – In Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, the third and final replica shuttle main engine (RSME) slides into an engine well of space shuttle Discovery with the aid of a Hyster forklift, a specially designed engine installer. The RSME is one of three being installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – Workers in Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida move a replica shuttle main engine (RSME) toward space shuttle Discovery with the aid of a Hyster forklift, a specially designed engine installer. The RSME is one of three being installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – Preparations are under way to install a replica shuttle main engine (RSME) on space shuttle Discovery in Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida. The RSME is one of three that will be installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are being built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – Space shuttle Discovery sports two replica shuttle main engines (RSMEs) in Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida. Three RSMEs will be installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are being built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – A replica shuttle main engine (RSME) rolls out of the Pratt & Whitney Rocketdyne engine shop at NASA’s Kennedy Space Center in Florida toward Orbiter Processing Facility-1 where it will be installed on space shuttle Discovery. In the background is the 525-foot-tall Vehicle Assembly Building. The RSME is one of three that will be installed on Discovery during Space Shuttle Program transition and retirement activities. Discovery is being prepared for display at the 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. – In Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, a replica shuttle main engine (RSME) lines up for installation on space shuttle Discovery with the aid of a Hyster forklift, a specially designed engine installer. The RSME is one of three being installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – In Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, a replica shuttle main engine (RSME) slides into the engine well of space shuttle Discovery with the aid of a Hyster forklift, a specially designed engine installer. The RSME is one of three being installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – Space shuttle Discovery sports three replica shuttle main engines (RSMEs) in Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida. The RSMEs were installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – A replica shuttle main engine (RSME) arrives in Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida where it will be installed on space shuttle Discovery. The RSME was built in the Pratt & Whitney Rocketdyne engine shop at Kennedy. The RSME is one of three that will be installed on Discovery during Space Shuttle Program transition and retirement activities. Discovery is being prepared for display at the 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. – Workers in Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida move a replica shuttle main engine (RSME) into position for installation on space shuttle Discovery. The RSME is one of three that will be installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are being built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – A replica shuttle main engine (RSME) is poised for installation on space shuttle Discovery in Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida. The RSME is one of three that will be installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are being built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – This panoramic view of Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida was taken during preparations to install the second of three replica shuttle main engines (RSMEs) on space shuttle Discovery. Altogether, three RSMEs will be installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – Placement of a replica shuttle main engine (RSME) on space shuttle Discovery is complete in Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida. The RSME is one of three that will be installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are being built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – A replica shuttle main engine (RSME) arrives at Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida where it will be installed on space shuttle Discovery. The RSME was built in the Pratt & Whitney Rocketdyne engine shop at Kennedy. The RSME is one of three that will be installed on Discovery during Space Shuttle Program transition and retirement activities. Discovery is being prepared for display at the 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. – A replica shuttle main engine (RSME) rolls through the high bay door of Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida where it will be installed on space shuttle Discovery. The RSME was built in the Pratt & Whitney Rocketdyne engine shop at Kennedy. The RSME is one of three that will be installed on Discovery during Space Shuttle Program transition and retirement activities. Discovery is being prepared for display at the 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. – In Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, workers position a replica shuttle main engine (RSME) into the engine well of space shuttle Discovery with the aid of a Hyster forklift, a specially designed engine installer. The RSME is one of three being installed on Discovery during Space Shuttle Program transition and retirement activities. The replicas are built in the Pratt & Whitney Rocketdyne engine shop at Kennedy to replace the shuttle engines which will be placed in storage to support NASA's Space Launch System, under development. Discovery is being prepared for display at the 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. – A completed replica shuttle main engine (RSME) awaits transport from the Pratt & Whitney Rocketdyne engine shop at NASA’s Kennedy Space Center in Florida to Orbiter Processing Facility-1 where it will be installed on space shuttle Discovery. The RSME is one of three that will be installed on Discovery during Space Shuttle Program transition and retirement activities. Discovery is being prepared for display at the 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 the Pratt & Whitney Rocketdyne engine shop at NASA’s Kennedy Space Center in Florida, one of the three replica shuttle main engines (RSMEs) created for space shuttle Discovery is attached to the space shuttle main engine horizontal installer. The replica engines will be transported from the engine shop to the processing facility for installation on Discovery in January 2012. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at the 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-1 at NASA's Kennedy Space Center in Florida, employees work within the aft end of space shuttle Discovery, where a replica shuttle main engine (RSME) is being installed. This is the first of three replica engines to be installed. The work is part of the Space Shuttle Program’s transition and retirement processing of Discovery. Discovery is being prepared for display at the 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, a lift holds a replica shuttle main engine (RSME) for installation on space shuttle Discovery. This is the first of three replica engines to be installed. The work is part of the Space Shuttle Program’s transition and retirement processing of Discovery. Discovery is being prepared for display at the 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 the Pratt & Whitney Rocketdyne engine shop at NASA’s Kennedy Space Center in Florida, the interior of the engine bell of one of the replica shuttle main engines (RSMEs) can be seen. The RSMEs were created for space shuttle Discovery. The replica engines will be transported from the engine shop to the processing facility for installation on Discovery in January 2012. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at the 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- Inside the Pratt & Whitney Rocketdyne engine shop at NASA’s Kennedy Space Center in Florida, a completed replica shuttle main engine (RSME) sits on a stand. The RSME is one of three created for space shuttle Discovery. The replica engines will be transported from the engine shop to the processing facility for installation on Discovery in January 2012. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at the 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- Inside the Pratt & Whitney Rocketdyne engine shop at NASA’s Kennedy Space Center in Florida, one of the three replica shuttle main engines (RSMEs) created for space shuttle Discovery is attached to the space shuttle main engine horizontal installer. The replica engines will be transported from the engine shop to the processing facility for installation on Discovery in January 2012. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at the 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- Inside the Pratt & Whitney Rocketdyne engine shop at NASA’s Kennedy Space Center in Florida, two of three completed replica shuttle main engines (RSMEs) sit on stands. The RSMEs were created for space shuttle Discovery. The replica engines will be transported from the engine shop to the processing facility for installation on Discovery in January 2012. The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at the 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/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility-1 at NASA's Kennedy Space Center in Florida, an employee guides a replica shuttle main engine (RSME) toward installation on space shuttle Discovery. This is the first of three replica engines to be installed. The work is part of the Space Shuttle Program’s transition and retirement processing of Discovery. Discovery is being prepared for display at the 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, a replica shuttle main engine (RSME) has been installed on space shuttle Discovery. This is the first of three replica engines to be installed. The work is part of the Space Shuttle Program’s transition and retirement processing of Discovery. Discovery is being prepared for display at the 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