NASA's Pegasus barge arrived at Stennis Space Center on Nov. 16, delivering space shuttle main engine ground support equipment to the south Mississippi facility. Stennis tested every main engine used on all 135 space shuttle flights.

CAPE CANAVERAL, Fla. – Two tugboats move the Pegasus Barge through the Banana River near NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. To the right of the barge is Launch Pad 39A. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – NASA's Freedom Star ship nears the Atlantic Ocean as it tows the Pegasus Barge through Port Canaveral in Florida. Freedom Star is towing the 266-foot-long and 50-foot-wide barge to Stennis Space Center near Bay St. Louis, Miss. to deliver space shuttle main engine (SSME) ground support equipment. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – NASA's Freedom Star ship tows the Pegasus Barge through Port Canaveral in Florida. Freedom Star is towing the 266-foot-long and 50-foot-wide barge to Stennis Space Center near Bay St. Louis, Miss. to deliver space shuttle main engine (SSME) ground support equipment. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – A tugboat pushes the Pegasus Barge through a drawbridge after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – NASA's Freedom Star ship tows the Pegasus Barge through Port Canaveral in Florida. Freedom Star is towing the 266-foot-long and 50-foot-wide barge to Stennis Space Center near Bay St. Louis, Miss. to deliver space shuttle main engine (SSME) ground support equipment. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – Pelicans lead the way as a tugboat pulls NASA's Pegasus Barge through the Port Canaveral lock in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – Viewers watch from the sidelines as NASA's Pegasus Barge makes its way through the Port Canaveral lock in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – A tugboat pulls NASA's Pegasus Barge through the Port Canaveral lock in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – A tugboat pulls the Pegasus Barge through a drawbridge after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – A tugboat pulls the Pegasus Barge through Port Canaveral after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida, a tugboat pushes the Pegasus Barge away from the dock as it begins its journey. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. –This 3-D image shows the tugboat, Miss Alexandra, beginning to push the Pegasus Barge away from the dock at the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. To view this image, use green and magenta 3-D glasses. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – A tugboat pulls the Pegasus Barge through Port Canaveral after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – NASA's Freedom Star ship tows the Pegasus Barge through Port Canaveral in Florida. Freedom Star is towing the 266-foot-long and 50-foot-wide barge to Stennis Space Center near Bay St. Louis, Miss. to deliver space shuttle main engine (SSME) ground support equipment. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – A tugboat pulls NASA's Pegasus Barge through the Port Canaveral lock in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – NASA's Freedom Star ship tows the Pegasus Barge through Port Canaveral in Florida. Freedom Star is towing the 266-foot-long and 50-foot-wide barge to Stennis Space Center near Bay St. Louis, Miss. to deliver space shuttle main engine (SSME) ground support equipment. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – In the early morning light at the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida, a tugboat begins to position the Pegasus Barge for towing. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. –This 3-D image shows a tugboat beginning to push the Pegasus Barge away from the dock at the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. To view this image, use green and magenta 3-D glasses. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – Just before dawn, the Pegasus Barge which is moored in a secure area of the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida, is being prepared to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. The 266-foot-long and 50-foot-wide barge will be towed to Stennis by NASA's Freedom Star ship. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – A tugboat pulls the Pegasus Barge through Port Canaveral after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – Tugboats maneuver the Pegasus Barge through the Banana River after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Tugboats maneuver the Pegasus Barge through the Banana River after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Tugboats maneuver the Pegasus Barge through Port Canaveral after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – In the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida, the Vehicle Assembly Building and Mobile Launcher are reflected in the water beside where a tugboat and the Pegasus Barge are moored. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – Tugboats maneuver the Pegasus Barge through Port Canaveral after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – Workers monitor the progress as a tugboat pulls NASA's Pegasus Barge through the Port Canaveral lock in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. –This 3-D image shows a tugboat pulling the Pegasus Barge along the Banana River after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. To view this image, use green and magenta 3-D glasses. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida, tugboats on either end of the Pegasus Barge begin to maneuver it away from the dock. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – Tugboats maneuver the Pegasus Barge through Port Canaveral after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – NASA's Freedom Star ship tows the Pegasus Barge through Port Canaveral in Florida. Freedom Star is towing the 266-foot-long and 50-foot-wide barge to Stennis Space Center near Bay St. Louis, Miss. to deliver space shuttle main engine (SSME) ground support equipment. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida, workers look on as a tugboat pushes the Pegasus Barge away from the dock. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – A tugboat pulls the Pegasus Barge through Port Canaveral after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – A tugboat pushes the Pegasus Barge through Port Canaveral after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – NASA's Freedom Star ship tows the Pegasus Barge through Port Canaveral in Florida. Freedom Star is towing the 266-foot-long and 50-foot-wide barge to Stennis Space Center near Bay St. Louis, Miss. to deliver space shuttle main engine (SSME) ground support equipment. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – The camera captures a unique view of NASA's Pegasus Barge as it is pulled through the Port Canaveral lock in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – Tugboats maneuver the Pegasus Barge through Port Canaveral after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – NASA's Freedom Star ship tows the Pegasus Barge through Port Canaveral in Florida. Freedom Star is towing the 266-foot-long and 50-foot-wide barge to Stennis Space Center near Bay St. Louis, Miss. to deliver space shuttle main engine (SSME) ground support equipment. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – Workers monitor the progress as a tugboat pulls NASA's Pegasus Barge through the Port Canaveral lock in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – NASA's Freedom Star ship tows the Pegasus Barge through Port Canaveral in Florida. Freedom Star is towing the 266-foot-long and 50-foot-wide barge to Stennis Space Center near Bay St. Louis, Miss. to deliver space shuttle main engine (SSME) ground support equipment. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – The Vehicle Assembly Building towers over two tugboats and the Pegasus Barge moored in a secure area of the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – In the early morning light at the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida, a tugboat begins to position the Pegasus Barge for towing. The 266 ft long and 50 ft wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – In the early morning light at the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida, two tugboats begin to position the Pegasus Barge for towing. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida, workers monitor nearby as the tugboat, Miss Alexandra, begins to position the Pegasus Barge for towing. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – A tugboat pulls the Pegasus Barge through Port Canaveral after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – Two tugboats move the Pegasus Barge through the Banana River near NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. To the right is Launch Pad 39A. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – A pelican flies overhead as tugboats maneuver NASA's Pegasus Barge to the entrance of the Port Canaveral lock in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – A tugboat pulls alongside the dock as NASA's Pegasus Barge makes its way through the Port Canaveral lock in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – A tugboat pulls NASA's Pegasus Barge through the Port Canaveral lock in Florida. The 266 ft long and 50 ft wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – A tugboat pulls the Pegasus Barge through the Banana River after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. To the right of the tugboat in the background is the Vehicle Assembly Building. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Workers are at the ready as tugboats maneuver NASA's Pegasus Barge to the entrance of the Port Canaveral lock in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy Space Center. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – The camera captures a side view of the Pegasus Barge which is moored in a secure area of the Turn Basin in the Launch Complex 39 area at NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/ Kim Shiflett

CAPE CANAVERAL, Fla. – The Pegasus Barge makes its way through a drawbridge after leaving NASA's Kennedy Space Center in Florida. The 266-foot-long and 50-foot-wide barge will be towed by NASA's Freedom Star ship to deliver space shuttle main engine (SSME) ground support equipment to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge is leaving Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area of NASA’s Kennedy Space Center in Florida, space shuttle main engine (SSME) ground support equipment is stowed away inside the Pegasus barge, ready for transport for delivery to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area of NASA’s Kennedy Space Center in Florida, space shuttle main engine (SSME) ground support equipment is stowed away inside the Pegasus barge, ready for transport for delivery to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area of NASA’s Kennedy Space Center in Florida, space shuttle main engine (SSME) ground support equipment is stowed away inside the Pegasus barge, ready for transport for delivery to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area of NASA’s Kennedy Space Center in Florida, space shuttle main engine (SSME) ground support equipment is stowed away inside the Pegasus barge, ready for transport for delivery to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area of NASA’s Kennedy Space Center in Florida, parts of the Hyster forklift, a specially designed engine installer used in conjunction with the space shuttle main engines (SSME), are stowed away inside the Pegasus barge, ready for transport for delivery to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area of NASA’s Kennedy Space Center in Florida, parts of the Hyster forklift, a specially designed engine installer used in conjunction with the space shuttle main engines (SSME), are stowed away inside the Pegasus barge, ready for transport for delivery to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency’s new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. – At the Turn Basin in the Launch Complex 39 area of NASA’s Kennedy Space Center in Florida, parts of the Hyster forklift, a specially designed engine installer used in conjunction with the space shuttle main engines (SSME), are stowed away inside the Pegasus barge, ready for transport for delivery to Stennis Space Center near Bay St. Louis, Miss. Since being delivered to NASA in 1999, Pegasus sailed 41 times and transported 31 shuttle external fuel tanks from Michoud Assembly Facility near New Orleans to Kennedy. The barge will leave Kennedy, perhaps for the final time. Both the barge and shuttle equipment will remain in storage until their specific future uses are determined. The SSMEs themselves will be transported to Stennis separately for use with the agency's new heavy-lift rocket, the Space Launch System. The work is part of the Space Shuttle Program’s transition and retirement processing. For more information about Shuttle Transition and Retirement, visit http://www.nasa.gov/mission_pages/transition/home/index.html. Photo credit: NASA/Cory Huston