Environmental portrait of Mary Gibson and of Tank 6 (VF-6) Solar Simulator for NASA GRC Web Feature Story

Solar Array Concentrator in Vacuum Tank 6

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KENNEDY SPACE CENTER, FLA. -- The Space Shuttle's first super lightweight external tank is on its way to Kennedy Space Center's Vehicle Assembly Building for processing. The tank, which is scheduled for flight on STS-91 in late May, arrived Feb. 3 in Port Canaveral, where it remained until Feb. 6 due to high winds. It was moved by barge to KSC on Feb. 6. The improved tank is 7,500 pounds lighter than its predecessors and was developed to increase the Shuttle payload capacity on International Space Station assembly flights. Major changes to the lighter tank include the use of new materials and a revised internal design. The new liquid oxygen and liquid hydrogen tanks are constructed of aluminum lithium a lighter, stronger material than the metal alloy currently used. The redesigned walls of the liquid hydrogen tank were machined to provide additional strength and stability as well

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KENNEDY SPACE CENTER, FLA. -- External tank No. 125 is moved out of the Pegasus barge at the Launch Complex 39 Area turn basin. After offloading, the tank will be transported to the Vehicle Assembly Building. The tank arrived at Kennedy on the Pegasus barge from the Michoud Assembly Facility near New Orleans. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- External tank No. 125 is moved out of the Pegasus barge at the Launch Complex 39 Area turn basin. After offloading, the tank will be transported to the Vehicle Assembly Building. The tank arrived at Kennedy on the Pegasus barge from the Michoud Assembly Facility near New Orleans. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

KENNEDY SPACE CENTER, FLA. -- After its lift and transfer inside the Vehicle Assembly Building, external tank No. 125 is suspended in a checkout cell in high bay 4 for processing. The tank will be part of the space shuttle stack for mission STS-122 targeted to launch Dec. 6. Photo credit: NASA/Troy Cryder

KENNEDY SPACE CENTER, FLA. -- Tugboats tow the Pegasus barge, with its cargo of external tank No. 125, on the Banana River. Seen in the background are the Atlas V (left) and Titan IV launch complexes. After it is offloaded, the tank will be moved to the Vehicle Assembly Building. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- On its transporter, external tank No. 125 moves toward the Vehicle Assembly Building, at right. The tank arrived at the Launch Complex 39 Area turn basin on the Pegasus barge from the Michoud Assembly Facility near New Orleans. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- On its transporter, external tank No. 125 sits in the transfer aisle inside the Vehicle Assembly Building. The tank arrived at the Launch Complex 39 Area turn basin on the Pegasus barge from the Michoud Assembly Facility near New Orleans. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

Saturn Apollo Program

A technician is pictured at the Marshall Space Flight Center welding the Y-ring to the S-IC stage bulkhead and the fuel tank for the Saturn V SA-502 launch vehicle (Apollo 6 mission) in building 4705. The size of the S-IC required a special rig known as the Y-ring to join the tank wall cylinders and domes together. The Y-ring was designed to eliminate lap joints where the tank domes, wall, and adjoining structure (such as the intertank segment) came together.

KENNEDY SPACE CENTER, FLA. -- Tugboats tow the Pegasus barge through the bridge at the haulover canal on the Banana River. The barge is carrying external tank No. 125. After it is offloaded, the tank will be moved to the Vehicle Assembly Building. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- In the transfer aisle of the Vehicle Assembly Building, external tank No. 125 is raised off its transporter. The tank will be raised to a vertical position and then lifted into a checkout cell in high bay 4 to allow for processing. The tank will be part of the space shuttle stack for mission STS-122 targeted to launch Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- Tugboats tow the Pegasus barge toward the dock in the turn basin of the Launch Complex 39 Area. At left is the Vehicle Assembly Building. The barge is carrying external tank No. 125. After it is offloaded, the tank will be moved to the Vehicle Assembly Building. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- Tugboats tow the Pegasus barge, with its cargo of external tank No. 125, on the Banana River. The barge is being towed to the turn basin in the Launch Complex 39 Area where the external tank will be offloaded and moved to the Vehicle Assembly Building. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- On its transporter, external tank No. 125 moves toward the Vehicle Assembly Building in the background. The tank arrived at the Launch Complex 39 Area turn basin on the Pegasus barge from the Michoud Assembly Facility near New Orleans. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- On its transporter, external tank No. 125 moves toward the entrance in the Vehicle Assembly Building. The tank arrived at the Launch Complex 39 Area turn basin on the Pegasus barge from the Michoud Assembly Facility near New Orleans. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- On its transporter, external tank No. 125 maneuvers around a corner on its way to the Vehicle Assembly Building. The tank arrived at the Launch Complex 39 Area turn basin on the Pegasus barge from the Michoud Assembly Facility near New Orleans. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- The Pegasus barge passes through the haulover canal on the Banana River with its cargo of external tank No. 125. The barge is being towed to the turn basin in the Launch Complex 39 Area where the external tank will be offloaded and moved to the Vehicle Assembly Building. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- Tugboats guide the Pegasus barge carrying external tank No. 125 in the Banana River after the barge's long journey around the Florida Peninsula from the Michoud Assembly Facility near New Orleans. The barge is being towed to the turn basin in the Launch Complex 39 Area where the external tank will be offloaded and moved to the Vehicle Assembly Building. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- On its transporter, external tank No. 125 moves through the entrance in the Vehicle Assembly Building. The tank arrived at the Launch Complex 39 Area turn basin on the Pegasus barge from the Michoud Assembly Facility near New Orleans. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- Tugboats maneuver the Pegasus barge toward the dock in the turn basin of the Launch Complex 39 Area. The barge is carrying external tank No. 125. After it is offloaded, the tank will be moved to the Vehicle Assembly Building. The external tank will be used on space shuttle Atlantis for mission STS-122 targeted for launch on Dec. 6. Photo credit: NASA/Troy Cryder

NASA Rocket Hardware Moves to Michoud’s Vertical Assembly Center for Next Phase of Production

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 6. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers will soon rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon. Image credit: NASA/Michael DeMocker

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a team of external tank specialists from Lockheed Martin and the United Space Alliance undertakes the task of removing the hydrogen feed-through connector in support of space shuttle Atlantis' STS-122 mission. Here, a technician inspects the connector just removed from the external tank. Some of the tank's engine cutoff sensors, or ECO sensors, failed during propellant tanking for launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. After the data from additional testing on the connector is analyzed, shuttle program managers will decide on a forward plan. Launch of STS-122 is targeted for January 2008. Photo credit: NASA/George Shelton

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a team of external tank specialists from Lockheed Martin and the United Space Alliance undertakes the task of removing the hydrogen feed-through connector in support of space shuttle Atlantis' STS-122 mission. Here, a technician pulls the connector assembly, with its associated electrical harness, away from the tank. Some of the tank's engine cutoff sensors, or ECO sensors, failed during propellant tanking for launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. After the data from additional testing on the connector is analyzed, shuttle program managers will decide on a forward plan. Launch of STS-122 is targeted for January 2008. Photo credit: NASA/George Shelton

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a team of external tank specialists from Lockheed Martin and the United Space Alliance undertakes the task of removing the hydrogen feed-through connector in support of space shuttle Atlantis' STS-122 mission. Here, a technician disconnects the connector before it is demated from the external tank. Some of the tank's engine cutoff sensors, or ECO sensors, failed during propellant tanking for launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. After the data from additional testing on the connector is analyzed, shuttle program managers will decide on a forward plan. Launch of STS-122 is targeted for January 2008. Photo credit: NASA/George Shelton

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a team of external tank specialists from Lockheed Martin and the United Space Alliance undertakes the task of removing the hydrogen feed-through connector in support of space shuttle Atlantis' STS-122 mission. Here, a technician demates the connector from the external tank. Some of the tank's engine cutoff sensors, or ECO sensors, failed during propellant tanking for launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. After the data from additional testing on the connector is analyzed, shuttle program managers will decide on a forward plan. Launch of STS-122 is targeted for January 2008. Photo credit: NASA/George Shelton

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The Space Shuttle's first super lightweight external tank is on its way to Kennedy Space Center's Vehicle Assembly Building for processing. The tank, which is scheduled for flight on STS-91 in late May, arrived Feb. 3 in Port Canaveral, where it remained until Feb. 6 due to high winds. The improved tank is 7,500 pounds lighter than its predecessors and was developed to increase the Shuttle payload capacity on International Space Station assembly flights. Major changes to the lighter tank include the use of new materials and a revised internal design. The new liquid oxygen and liquid hydrogen tanks are constructed of aluminum lithium a lighter, stronger material than the metal alloy currently used. The redesigned walls of the liquid hydrogen tank were machined to provide additional strength and stability as well

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a team of external tank specialists from Lockheed Martin and the United Space Alliance undertakes the task of removing the hydrogen feed-through connector in support of space shuttle Atlantis' STS-122 mission. Here, technicians set up equipment that will be used to take X-rays of the connector cable. Some of the tank's engine cutoff sensors, or ECO sensors, failed during propellant tanking for launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. After the data from additional testing on the connector is analyzed, shuttle program managers will decide on a forward plan. Launch of STS-122 is targeted for January 2008. Photo credit: NASA/George Shelton

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a team of external tank specialists from Lockheed Martin and the United Space Alliance undertakes the task of removing the hydrogen feed-through connector in support of space shuttle Atlantis' STS-122 mission. Here, a technician cuts the external connector cable. Some of the tank's engine cutoff sensors, or ECO sensors, failed during propellant tanking for launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. After the data from additional testing on the connector is analyzed, shuttle program managers will decide on a forward plan. Launch of STS-122 is targeted for January 2008. Photo credit: NASA/George Shelton

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a team of external tank specialists from Lockheed Martin and the United Space Alliance undertakes the task of removing the hydrogen feed-through connector in support of space shuttle Atlantis' STS-122 mission. Here, technicians wrap the connector for transport to NASA's Marshall Space Flight Center in Huntsville, Ala., for further cryogenic testing. Some of the tank's engine cutoff sensors, or ECO sensors, failed during propellant tanking for launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. After the data from additional testing on the connector is analyzed, shuttle program managers will decide on a forward plan. Launch of STS-122 is targeted for January 2008. Photo credit: NASA/George Shelton

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The Space Shuttle's first super lightweight external tank is on its way to Kennedy Space Center's Vehicle Assembly Building for processing. The tank, which is scheduled for flight on STS-91 in late May, arrived Feb. 3 in Port Canaveral, where it remained until Feb. 6 due to high winds. The improved tank is 7,500 pounds lighter than its predecessors and was developed to increase the Shuttle payload capacity on International Space Station assembly flights. Major changes to the lighter tank include the use of new materials and a revised internal design. The new liquid oxygen and liquid hydrogen tanks are constructed of aluminum lithium a lighter, stronger material than the metal alloy currently used. The redesigned walls of the liquid hydrogen tank were machined to provide additional strength and stability as well

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a team of external tank specialists from Lockheed Martin and the United Space Alliance undertakes the task of removing the hydrogen feed-through connector in support of space shuttle Atlantis' STS-122 mission. Here, a technician removes a pair of support brackets. Some of the tank's engine cutoff sensors, or ECO sensors, failed during propellant tanking for launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. After the data from additional testing on the connector is analyzed, shuttle program managers will decide on a forward plan. Launch of STS-122 is targeted for January 2008. Photo credit: NASA/George Shelton

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a team of external tank specialists from Lockheed Martin and the United Space Alliance undertakes the task of removing the hydrogen feed-through connector in support of space shuttle Atlantis' STS-122 mission. Here, a technician gives the connector a cleaning, removing any residual foam insulation, and begins disconnecting the connector assembly. Some of the tank's engine cutoff sensors, or ECO sensors, failed during propellant tanking for launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. After the data from additional testing on the connector is analyzed, shuttle program managers will decide on a forward plan. Launch of STS-122 is targeted for January 2008. Photo credit: NASA/George Shelton

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KENNEDY SPACE CENTER, FLA. -- The Space Shuttle's first super lightweight external tank is on its way into Kennedy Space Center's Vehicle Assembly Building for processing. The tank, which is scheduled for flight on STS-91 in late May, arrived Feb. 3 in Port Canaveral, where it remained until Feb. 6 due to high winds. The improved tank is 7,500 pounds lighter than its predecessors and was developed to increase the Shuttle payload capacity on International Space Station assembly flights. Major changes to the lighter tank include the use of new materials and a revised internal design. The new liquid oxygen and liquid hydrogen tanks are constructed of aluminum lithium a lighter, stronger material than the metal alloy currently used. The redesigned walls of the liquid hydrogen tank were machined to provide additional strength and stability as well

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The Space Shuttle's first super lightweight external tank is on its way to Kennedy Space Center's Vehicle Assembly Building for processing. The tank, which is scheduled for flight on STS-91 in late May, arrived Feb. 3 in Port Canaveral, where it remained until Feb. 6 due to high winds. The improved tank is 7,500 pounds lighter than its predecessors and was developed to increase the Shuttle payload capacity on International Space Station assembly flights. Major changes to the lighter tank include the use of new materials and a revised internal design. The new liquid oxygen and liquid hydrogen tanks are constructed of aluminum lithium a lighter, stronger material than the metal alloy currently used. The redesigned walls of the liquid hydrogen tank were machined to provide additional strength and stability as well

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The Space Shuttle's first super lightweight external tank is on its way to Kennedy Space Center's Vehicle Assembly Building for processing. The tank, which is scheduled for flight on STS-91 in late May, arrived Feb. 3 in Port Canaveral, where it remained until Feb. 6 due to high winds. The improved tank is 7,500 pounds lighter than its predecessors and was developed to increase the Shuttle payload capacity on International Space Station assembly flights. Major changes to the lighter tank include the use of new materials and a revised internal design. The new liquid oxygen and liquid hydrogen tanks are constructed of aluminum lithium a lighter, stronger material than the metal alloy currently used. The redesigned walls of the liquid hydrogen tank were machined to provide additional strength and stability as well

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The Space Shuttle's first super lightweight external tank is on its way to Kennedy Space Center's Vehicle Assembly Building for processing. The tank, which is scheduled for flight on STS-91 in late May, arrived Feb. 3 in Port Canaveral, where it remained until Feb. 6 due to high winds. The improved tank is 7,500 pounds lighter than its predecessors and was developed to increase the Shuttle payload capacity on International Space Station assembly flights. Major changes to the lighter tank include the use of new materials and a revised internal design. The new liquid oxygen and liquid hydrogen tanks are constructed of aluminum lithium a lighter, stronger material than the metal alloy currently used. The redesigned walls of the liquid hydrogen tank were machined to provide additional strength and stability as well

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a team of external tank specialists from Lockheed Martin and the United Space Alliance undertakes the task of removing the hydrogen feed-through connector in support of space shuttle Atlantis' STS-122 mission. Here, technicians wrap the connector for transport to NASA's Marshall Space Flight Center in Huntsville, Ala., for further cryogenic testing. Some of the tank's engine cutoff sensors, or ECO sensors, failed during propellant tanking for launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. After the data from additional testing on the connector is analyzed, shuttle program managers will decide on a forward plan. Launch of STS-122 is targeted for January 2008. Photo credit: NASA/George Shelton

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KENNEDY SPACE CENTER, FLA. -- The Space Shuttle's first super lightweight external tank is on its way to Kennedy Space Center's Vehicle Assembly Building for processing. The tank, which is scheduled for flight on STS-91 in late May, arrived Feb. 3 in Port Canaveral, where it remained until Feb. 6 due to high winds. The improved tank is 7,500 pounds lighter than its predecessors and was developed to increase the Shuttle payload capacity on International Space Station assembly flights. Major changes to the lighter tank include the use of new materials and a revised internal design. The new liquid oxygen and liquid hydrogen tanks are constructed of aluminum lithium a lighter, stronger material than the metal alloy currently used. The redesigned walls of the liquid hydrogen tank were machined to provide additional strength and stability as well

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KENNEDY SPACE CENTER, FLA. -- The Space Shuttle's first super lightweight external tank is on its way to Kennedy Space Center's Vehicle Assembly Building for processing. The tank, which is scheduled for flight on STS-91 in late May, arrived Feb. 3 in Port Canaveral, where it remained until Feb. 6 due to high winds. The improved tank is 7,500 pounds lighter than its predecessors and was developed to increase the Shuttle payload capacity on International Space Station assembly flights. Major changes to the lighter tank include the use of new materials and a revised internal design. The new liquid oxygen and liquid hydrogen tanks are constructed of aluminum lithium a lighter, stronger material than the metal alloy currently used. The redesigned walls of the liquid hydrogen tank were machined to provide additional strength and stability as well

KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, the external tank is lowered between the solid rocket boosters on the mobile launcher platform below. After mating, the boosters-tank configuration will be used on space shuttle Atlantis for mission STS-122, which is targeted for launch on Dec. 6. Photo credit: Kim Shiflett

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KENNEDY SPACE CENTER, FLA. -- In its vertical position, external tank No. 125 is being lifted high into the upper levels of the Vehicle Assembly Building for transfer to a checkout cell in high bay 4 to allow for processing. The tank will be part of the space shuttle stack for mission STS-122 targeted to launch Dec. 6. Photo credit: NASA/Troy Cryder

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CAPE CANAVERAL, Fla. – The Pegasus barge is docked in the turn basin in the Launch Complex 39 Area at NASA's Kennedy Space Center in Florida. Inside is the external fuel tank, ET- 132, designated for space shuttle Discovery on the STS-128 mission. The tank will be offloaded and transported to a high bay in the Vehicle Assembly Building for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Troy Cryder

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CAPE CANAVERAL, Fla. – The external fuel tank, ET- 132, designated for use with space shuttle Discovery on the STS-128 mission moves toward the open door of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The tank will be moved into a high bay for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Jack Pfaller

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KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, the external tank is lowered toward the solid rocket boosters on the mobile launcher platform below. Visible on the bottom are the orbiter aft attachments. After mating, the boosters-tank configuration will be used on space shuttle Atlantis for mission STS-122, which is targeted for launch on Dec. 6. Photo credit: Kim Shiflett

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KENNEDY SPACE CENTER, FLA. -- Above the transfer aisle of the Vehicle Assembly Building, external tank No. 125 has been raised to a nearly vertical position. It will next be lifted into a checkout cell in high bay 4 to allow for processing. The tank will be part of the space shuttle stack for mission STS-122 targeted to launch Dec. 6. Photo credit: NASA/Troy Cryder

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CAPE CANAVERAL, Fla. – Tugboats maneuver the Pegasus barge toward the dock in the turn basin in the Launch Complex 39 Area at NASA's Kennedy Space Center in Florida. The barge holds the external fuel tank, ET- 132, designated for space shuttle Discovery on the STS-128 mission. The tank will be offloaded and transported to a high bay in the Vehicle Assembly Building for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Troy Cryder

KENNEDY SPACE CENTER, FLA. -- In the transfer aisle of the Vehicle Assembly Building, external tank No. 125 is suspended above the floor as it is being raised to a vertical position. It will then be lifted into a checkout cell in high bay 4 to allow for processing. The tank will be part of the space shuttle stack for mission STS-122 targeted to launch Dec. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- Seen from below, external tank No. 125 is being lifted high into the upper levels of the Vehicle Assembly Building for transfer to a checkout cell in high bay 4 to allow for processing. The tank will be part of the space shuttle stack for mission STS-122 targeted to launch Dec. 6. Photo credit: NASA/Troy Cryder

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CAPE CANAVERAL, Fla. – The external fuel tank, ET- 132, designated for use with space shuttle Discovery on the STS-128 mission moves into the transfer aisle of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The tank will be moved into a high bay for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Jack Pfaller

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KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, the external tank is lowered toward the solid rocket boosters on the mobile launcher platform below. Visible on the bottom is an orbiter aft attachment. After mating, the boosters-tank configuration will be used on space shuttle Atlantis for mission STS-122, which is targeted for launch on Dec. 6. Photo credit: Kim Shiflett

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CAPE CANAVERAL, Fla. – The Pegasus barge, towed by a tugboat, enters the turn basin in the Launch Complex 39 Area at NASA's Kennedy Space Center in Florida. The barge holds the external fuel tank, ET- 132, designated for space shuttle Discovery on the STS-128 mission. The tank will be offloaded and transported to a high bay in the Vehicle Assembly Building for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Troy Cryder

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CAPE CANAVERAL, Fla. – The external fuel tank, ET- 132, designated for use with space shuttle Discovery on the STS-128 mission moves toward the open door of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The tank will be moved into a high bay for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Jack Pfaller

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KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, United Space Alliance technicians get ready to lower the external tank to be mated with the solid rocket boosters on the mobile launcher platform. The boosters-tank configuration will be used on space shuttle Atlantis for mission STS-122, which is targeted for launch on Dec. 6. Photo credit: Kim Shiflett

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CAPE CANAVERAL, Fla. – The Pegasus barge is docked in the turn basin in the Launch Complex 39 Area at NASA's Kennedy Space Center in Florida. Inside is the external fuel tank, ET- 132, designated for space shuttle Discovery on the STS-128 mission. The tank will be offloaded and transported to a high bay in the Vehicle Assembly Building for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Troy Cryder

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KENNEDY SPACE CENTER, FLA. -- Space shuttle Atlantis' external tank and solid rocket boosters will be the subject of a tanking test with the Time Domain Reflectometry, or TDR, test equipment whose wiring is being calibrated Dec. 14. The shuttle's planned launches on Dec. 6 and Dec. 9 were postponed because of false readings from the part of the ECO system that monitors the liquid hydrogen section of the tank. The liftoff date from NASA's Kennedy Space Center, Florida, is now targeted for Jan. 10, depending on the resolution of the problem in the fuel sensor system. Photo credit: NASA/Kim Shiflett

NASA 60th Anniversary Public Tours / NASA 60th Anniversary Ce...

Visitors at NASA's Michoud Assembly Facility in New Orleans see the historic model room, the space shuttle external tank, and the most current progress on NASA's Orion and SLS vehicles on Aug. 6, 2015. Part of Batch image transfer from Flickr.

Touring the Michoud Assembly Facility

STS055-39-036 (26 April-6 May 1993) --- Astronaut Terence T. (Tom) Henricks, pilot, uses a spotlight and pen to point out a possible problem area on a waste water tank in the bilge area below Columbia's middeck. Astronaut Jerry L. Ross, payload commander, records the activity with a camera.

STS-55 crewmembers repair waste water tank under OV-102's middeck subfloor

Touring the Michoud Assembly Facility

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KENNEDY SPACE CENTER, FLA. -- On Launch Pad 39A, Lockheed Martin engineer Ray Clark splices wires between space shuttle Atlantis' external tank and the engine cutoff, or ECO, sensor system. The replacement feed-through connector in the ECO sensor system will be installed later. Some of the tank's ECO sensors gave failed readings during propellant tanking for Atlantis' STS-122 mission launch attempts on Dec. 6 and Dec. 9. Results of a tanking test on Dec. 18 pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. The pins in the replacement connector have been precisely soldered to create a connection that allows sensors inside the tank to send signals to the computers onboard Atlantis. No problems with the ECO sensors themselves have been found. NASA's Space Shuttle Program has proposed a target launch date of Feb. 7 for the STS-122 mission. That proposed launch date remains under evaluation pending coordination with all partners in the International Space Station Program. Photo credit: NASA/George Shelton

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KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39A, a United Space Alliance technician removes foam insulation revealing the fastener holes on the covers over the feed-through connector box on the external tank for space shuttle Atlantis' STS-122 mission. The covers will be removed for access to the feed-through connectors. Following the failure of some of the tank's engine cutoff sensors, or ECO sensors, during propellant tanking for launch attempts on Dec. 6 and Dec. 9, a tanking test was conducted on Dec. 18 to aid in troubleshooting the cause. Technicians spliced test wiring into the ECO sensor electrical system and used time domain reflectometry equipment to help locate the electrical anomaly. Results of the tanking test pointed to an open circuit in the feed-through connector wiring, which is located at the base of the tank. The feed-through connector passes the wires from the inside of the tank to the outside. During the holiday period, workers from Lockheed Martin will begin inspecting and testing the connector. Shuttle program managers will meet on Dec. 27 to review the test and analysis, and decide on a forward plan. Photo credit: NASA/Kim Shiflett