CAPE CANAVERAL, Fla. – While wearing a safety harness, United Space Alliance aerospace technician Greg Smith checks equipment during weight and center of gravity checks on the space shuttle Endeavour in Bay 2 of the Orbiter Processing Facility at NASA’s Kennedy Space Center in Florida. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility OPF Bay 2 at NASA’s Kennedy Space Center in Florida, weight and center of gravity checks are underway on the space shuttle Endeavour. Monitoring data on the activity are United Space Alliance USA OPF Manager Mark Barnes, standing to the left, and Mike McClure, of USA Orbiter Handling Engineering. Seated, from the left, are USA move director Cliff Semonski, USA move director Mark McGee, USA lead aerospace Quality Mission Assurance inspector Jesse English, Doug Robison, of USA Orbiter Handling Engineering, and Robert Handl, of Boeing Mass Properties. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – Looking along the under belly toward the main landing gear of the space shuttle Endeavour, United Space Alliance technicians complete weight and center of gravity checks in Bay 2 of the Orbiter Processing Facility at NASA’s Kennedy Space Center in Florida. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, Kennedy Space Center Director Bob Cabana, center, uses a "T"-shaped tool to lock the space shuttle Endeavour's hatch as United Space Alliance technicians Gary Hamilton, left, and Joe Walsh assist. The orbiter is undergoing final preparations for its cross-country ferry flight to California. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, Kennedy Space Center Director Bob Cabana, far right, watches as United Space Alliance technicians Gary Hamilton, foreground, and Joe Walsh begin preparations to close the space shuttle Endeavour's hatch. The orbiter is undergoing final preparations for its cross-country ferry flight to California. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, Kennedy Space Center Director Bob Cabana, far right, watches as, left to right, United Space Alliance technicians Gary Hamilton, Bobby Wright and Joe Walsh begin closing the space shuttle Endeavour's hatch. The orbiter is undergoing final preparations for its cross-country ferry flight to California. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – While wearing a safety harness, United Space Alliance aerospace technician Greg Smith checks equipment during weight and center of gravity checks on the space shuttle Endeavour in Bay 2 of the Orbiter Processing Facility at NASA’s Kennedy Space Center in Florida. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, United Space Alliance aerospace Quality Assurance inspector Dave Bliss, left, and Spherion aerospace technician Scott Palmer complete weight and center of gravity checks on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – Looking along the under belly of the space shuttle Endeavour toward its main landing gear, United Space Alliance technicians complete weight and center of gravity checks in Bay 2 of the Orbiter Processing Facility at NASA’s Kennedy Space Center in Florida. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, Kennedy Space Center Director Bob Cabana, far right, watches as, left to right, United Space Alliance quality inspector Ken Carson, along with technicians Gary Hamilton and Joe Walsh remove protective covers in preparation to close the space shuttle Endeavour's hatch. The orbiter is undergoing final preparations for its cross-country ferry flight to California. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, United Space Alliance technicians complete weight and center of gravity checks on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, United Space Alliance USA aerospace technician Jim Reed and USA aerospace quality assurance inspector Rob Lewis complete weight and center of gravity checks on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, a United Space Alliance technician monitors the nose landing gear during weight and center of gravity checks on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, Kennedy Space Center Director Bob Cabana holds the "T"-shaped tool he used to lock the space shuttle Endeavour's hatch. The orbiter is undergoing final preparations for its cross-country ferry flight to California. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, weight and center of gravity checks are being completed on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, the space shuttle Endeavour's hatch has been locked and sealed in final preparation for its cross-country ferry flight to California. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, United Space Alliance technicians complete weight and center of gravity checks on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, United Space Alliance technicians Gary Hamilton, left, and Joe Walsh close the space shuttle Endeavour's hatch. The orbiter is undergoing final preparations for its cross-country ferry flight to California. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, United Space Alliance technicians monitor an orbiter jack as weight and center of gravity checks are completed on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. – Looking along the nose landing gear of the space shuttle Endeavour, United Space Alliance technicians complete weight and center of gravity checks in Bay 2 of the Orbiter Processing Facility at NASA’s Kennedy Space Center in Florida. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Jim Grossmann

CAPE CANAVERAL, Fla. - In this wide-angle view inside Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, replica shuttle main engines 3 RSME has been installed on the space shuttle Endeavour. The orbiter is surrounded by work platforms allowing access to all areas of the spacecraft. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Dimitri Gerondidakis

CAPE CANAVERAL, Fla. - In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, simulated thrusters are being painted on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, the Hyster forklift is used to deliver replica shuttle main engine RSME number 3 to Orbiter Processing Facility Bay 2 for installation on space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis moves out of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, technicians work inside the aft compartment of the space shuttle Endeavour as replica shuttle main engine RSME number 3 is installed on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis is towed from the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Endeavour moves into the Vehicle Assembly Building, or VAB, at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in the VAB. Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis is towed away from the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 1 at NASA’s Kennedy Space Center in Florida, technicians work with the Hyster forklift as replica shuttle main engine RSME number 3 is installed on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Dimitri Gerondidakis

CAPE CANAVERAL, Fla. - In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, simulated thrusters are being painted on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Technicians keep a close watch as the Hyster forklift arrives at Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida. Replica shuttle main engine RSME number 3 is being delivered for installation on space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis meets sister shuttle Endeavour in the background for a brief photo opportunity at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in Vehicle Assembly Building VAB. In the VAB, Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – With its aerodynamic tail cone in place, the space shuttle Endeavour backs out of Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida. Endeavour will be moved to the Vehicle Assembly Building to undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. - In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, replica shuttle main engine RSME number 1 has been installed on space shuttle Endeavour. The orbiter is surrounded by work platforms allowing access to all areas of the spacecraft. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. – The space shuttle Endeavour moves into the Vehicle Assembly Building VAB at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in the VAB. Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Endeavour backs out of Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida. Endeavour will be moved to the Vehicle Assembly Building to undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, technicians use the Hyster forklift to install replica shuttle main engine RSME number 1 on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. – A United Space Alliance technician monitors the space shuttle Endeavour as it backs out of Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida. Endeavour will be moved to the Vehicle Assembly Building to undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. - In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, a technician spray paints simulated thrusters on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – This wide-angle view shows the space shuttle Atlantis as it enters Bay 2 of the Orbiter Processing Facility OPF at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour that moved into the Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, technicians use the Hyster forklift to install replica shuttle main engine RSME number 1 on the space shuttle Endeavour. The orbiter is surrounded by work platforms allowing access to all areas of the spacecraft. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. – The space shuttle Atlantis is towed from the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Endeavour backs through the doors of Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida. Endeavour will be moved to the Vehicle Assembly Building to undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Endeavour meets sister shuttle Atlantis in the background for a brief photo opportunity at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility OPF to switch places with Atlantis which had been in the Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Employees at NASA's Kennedy Space Center in Florida watch as the space shuttle Atlantis is towed from the Vehicle Assembly Building. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Endeavour moves away from sister shuttle Atlantis in the background following a brief photo opportunity at NASA's Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility OPF to switch places with Atlantis which had been in the Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. - In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, simulated thrusters have been painted on the space shuttle Endeavour’s Orbital Maneuvering System Pods. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – The space shuttle Endeavour moves away from sister shuttle Atlantis in the background following a brief photo opportunity at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility OPF to switch places with Atlantis which had been in the Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In an overhead view, technicians work inside the aft compartment of the space shuttle Endeavour during installation of replica shuttle main engine RSME number 3 in Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis is towed into Bay 2 of the Orbiter Processing Facility OPF at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour that moved into the Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – United Space Alliance technicians monitor the space shuttle Atlantis as it moves out of the Vehicle Assembly Building VAB at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, technicians install replica shuttle main engine RSME number 3 on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Endeavour moves into the Vehicle Assembly Building, or VAB, at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in the VAB. Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis is towed into Bay 2 of the Orbiter Processing Facility OPF at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour that moved into the Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – With its aerodynamic tail cone in place, the space shuttle Endeavour backs out of Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida. Endeavour will be moved to the Vehicle Assembly Building to undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Endeavour begins its move from Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida to the Vehicle Assembly Building. There it will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakiss

CAPE CANAVERAL, Fla. – The space shuttle Atlantis is towed from the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Atlantis is towed into Bay 2 of the Orbiter Processing Facility OPF at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour that moved into the Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Technicians monitor progress as the space shuttle Atlantis is towed into Bay 2 of the Orbiter Processing Facility OPF at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour that moved into the Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Atlantis meets sister shuttle Endeavour in the background for a brief photo opportunity at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in Vehicle Assembly Building VAB. In the VAB, Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, United Space Alliance technicians have removed several auxiliary power units from space shuttle Endeavour and are preparing them for transport. The work is part of Endeavour’s transition and retirement processing. The spacecraft is being prepared for public display at the California Science Center in Los Angeles. Endeavour flew 25 missions, spent 299 days in space, orbited Earth 4,671 times and traveled 122, 883, 151 miles over the course of its 19-year career. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis completes its move into Bay 2 of the Orbiter Processing Facility OPF at NASA's Kennedy Space Center in Florida. Atlantis switched places with Endeavour that moved into the Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Former NASA Endeavour flow director Dana Hutcherson, left, and former NASA Atlantis flow director Angie Brewer, pose with the two spacecraft that were brought together for a brief photo opportunity. Endeavour moved from Bay 2 of the Orbiter Processing Facility OPF to switch places with Atlantis which had been in Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Space shuttles Endeavour and Atlantis are parked nose-to-nose for a brief photo opportunity. The shuttles are switching locations at NASA's Kennedy Space Center in Florida. Endeavour backed out of Bay 2 of the Orbiter Processing Facility and Atlantis moved out of the Vehicle Assembly Building VAB. Endeavour is undergoing final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Frankie Martin

CAPE CANAVERAL, Fla. – The space shuttle Endeavour moves clear of the doors to Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida. Endeavour will be moved to the Vehicle Assembly Building to undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, United Space Alliance technicians have removed one of the auxiliary power units from space shuttle Endeavour and have transported it to an area inside OPF-2. The work is part of Endeavour’s transition and retirement processing. The spacecraft is being prepared for public display at the California Science Center in Los Angeles. Endeavour flew 25 missions, spent 299 days in space, orbited Earth 4,671 times and traveled 122, 883, 151 miles over the course of its 19-year career. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – This wide-angle view shows the space shuttle Atlantis as it enters Bay 2 of the Orbiter Processing Facility OPF at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour that moved into the Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Endeavour meets sister shuttle Atlantis in the background for a brief photo opportunity at NASA's Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility OPF to switch places with Atlantis which had been in. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. - In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, replica shuttle main engine RSME number 1 has been installed on space shuttle Endeavour. The orbiter is surrounded by work platforms allowing access to all areas of the spacecraft. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. – The space shuttle Endeavour meets sister shuttle Atlantis in the background for a brief photo opportunity at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in Vehicle Assembly Building VAB. In the VAB, Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – As the space shuttle Endeavour approaches shuttle Atlantis, in the background, Kennedy Space Center employees keep a close watch. Endeavour met its sister shuttle for a brief photo opportunity at the Florida spaceport. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in Vehicle Assembly Building VAB. In the VAB, Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis begins backing out of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Endeavour begins its move from Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida to the Vehicle Assembly Building. There it will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Endeavour backs out of Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida. Endeavour will be moved to the Vehicle Assembly Building to undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Endeavour is ready to back out of Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida. It will be moved to the Vehicle Assembly Building to undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis moves out of the 525-foot-tall Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, technicians use the Hyster forklift to install replica shuttle main engine RSME number 1 on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, the Hyster forklift arrives at Orbiter Processing Facility Bay 2 delivering replica shuttle main engine RSME number 3 for installation on space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis meets sister shuttle Endeavour in the background for a brief photo opportunity at NASA's Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility OPF to switch places with Atlantis which had been in Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, technicians use the Hyster forklift to install replica shuttle main engine RSME number 3 on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis is towed away from the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Atlantis begins backing out of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Atlantis is towed away from the 525-foot-tall Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, technicians use the Hyster forklift to install replica shuttle main engine RSME number 1 on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. – A tow vehicle carefully backs the space shuttle Endeavour out of Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida. Endeavour will be moved to the Vehicle Assembly Building to undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, United Space Alliance technicians have removed one of the auxiliary power units from space shuttle Endeavour and are placing it on a special cart. The work is part of Endeavour’s transition and retirement processing. The spacecraft is being prepared for public display at the California Science Center in Los Angeles. Endeavour flew 25 missions, spent 299 days in space, orbited Earth 4,671 times and traveled 122, 883, 151 miles over the course of its 19-year career. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis is towed away from the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Endeavour moves into the Vehicle Assembly Building, or VAB, at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in the VAB. Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – United Space Alliance technicians monitor the space shuttle Atlantis as it begins backing out of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. - In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, United Space Alliance senior aerospace technician Alan Shinault spray paints simulated thrusters on the space shuttle Endeavour. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – The space shuttle Endeavour backs out of Bay 2 of the Orbiter Processing Facility at the Kennedy Space Center in Florida. Endeavour will be moved to the Vehicle Assembly Building to undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis begins backing out of the 525-foot-tall Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Atlantis is switching places with Endeavour which had been in Bay 2 of the Orbiter Processing Facility OPF. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Endeavour moves into the Vehicle Assembly Building, or VAB, at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in the VAB. Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. - In Orbiter Processing Facility Bay 2 at NASA’s Kennedy Space Center in Florida, replica shuttle main engines 3 RSME has been installed on the space shuttle Endeavour. The orbiter is surrounded by work platforms allowing access to all areas of the spacecraft. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Its ferry flight to California is targeted for mid-September. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/ Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In Orbiter Processing Facility-2 at NASA’s Kennedy Space Center in Florida, a United Space Alliance technician begins to move a cart containing one of the auxiliary power units that was removed from space shuttle Endeavour. The work is part of Endeavour’s transition and retirement processing. The spacecraft is being prepared for public display at the California Science Center in Los Angeles. Endeavour flew 25 missions, spent 299 days in space, orbited Earth 4,671 times and traveled 122, 883, 151 miles over the course of its 19-year career. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – Employees at NASA's Kennedy Space Center in Florida keep a watchful eye on the space shuttle Atlantis as it meets sister shuttle Endeavour in the background for a brief photo opportunity. Endeavour moved from Bay 2 of the Orbiter Processing Facility OPF to switch places with Atlantis which had been in Vehicle Assembly Building. In the OPF, Atlantis will undergo final preparations for its transfer to the Kennedy Space Center Visitor Complex targeted for November. The work is part of Transition and Retirement of the remaining space shuttles, Atlantis and Endeavour. Atlantis is being prepared for public display at Kennedy's Visitor Complex. Over the course of its 26-year career, Atlantis spent 293 days in space during 33 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The space shuttle Endeavour moves from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in Vehicle Assembly Building VAB. In the VAB, Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Atlantis meets sister shuttle Endeavour in the background for a brief photo opportunity at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in Vehicle Assembly Building VAB. In the VAB, Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis

The space shuttle Endeavour approaches sister shuttle Atlantis in the background for a brief photo opportunity at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in Vehicle Assembly Building VAB. In the VAB, Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – The space shuttle Endeavour meets sister shuttle Atlantis, in the background, for a brief photo opportunity at the Kennedy Space Center in Florida. Endeavour moved from Bay 2 of the Orbiter Processing Facility to switch places with Atlantis which had been in Vehicle Assembly Building VAB. In the VAB, Endeavour will undergo final preparations for its cross-country ferry flight targeted for mid-September. The work is part of Transition and Retirement of the remaining space shuttles, Endeavour and Atlantis. Endeavour is being prepared for public display at the California Science Center in Los Angeles. Endeavour was the last space shuttle added to NASA’s orbiter fleet. Over the course of its 19-year career, Endeavour spent 299 days in space during 25 missions. For more information, visit http://www.nasa.gov/transition Photo credit: NASA/Dimitri Gerondidakis