KENNEDY SPACE CENTER, FLA. -- The orbiter Endeavour is lifted into the upper levels of the Vehicle Assembly Building. It will be moved laterally over a crossbeam and lowered into high bay 1 for stacking with the external tank and solid rocket boosters on the mobile launcher platform. Endeavour will be launched on mission STS-118, its first flight in more than four years. The shuttle has undergone extensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and extend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Troy Cryder

KENNEDY SPACE CENTER, FLA. -- Inside the Vehicle Assembly Building, the external tank for Endeavour is lowered between the solid rocket boosters toward the mobile launcher platform below. Endeavour is currently targeted for rollover to the VAB July 5. Endeavour is the designated orbiter for mission STS-118, targeted for launch on Aug. 9 to the International Space Station. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the external stowage platform 3. Photo credit: NASA/Amanda Diller

KENNEDY SPACE CENTER, FLA. -- Inside the Vehicle Assembly Building, the external tank for Endeavour is lowered between the solid rocket boosters toward the mobile launcher platform below. Endeavour is currently targeted for rollover to the VAB July 5. Endeavour is the designated orbiter for mission STS-118, targeted for launch on Aug. 9 to the International Space Station. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the external stowage platform 3. Photo credit: NASA/Amanda Diller

KENNEDY SPACE CENTER, FLA. -- Inside the Vehicle Assembly Building, the external tank for Endeavour is lowered between the solid rocket boosters toward the mobile launcher platform below. Endeavour is currently targeted for rollover to the VAB July 5. Endeavour is the designated orbiter for mission STS-118, targeted for launch on Aug. 9 to the International Space Station. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the external stowage platform 3. Photo credit: NASA/Amanda Diller

KENNEDY SPACE CENTER, FLA. -- Inside the Vehicle Assembly Building, the external tank for Endeavour is lowered toward the mobile launcher platform for mating with the solid rocket boosters. Endeavour is currently targeted for rollover to the VAB July 5. Endeavour is the designated orbiter for mission STS-118, targeted for launch on Aug. 9 to the International Space Station. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the external stowage platform 3. Photo credit: NASA/Amanda Diller

KENNEDY SPACE CENTER, FLA. -- Inside the Vehicle Assembly Building, the external tank for Endeavour is lowered between the solid rocket boosters toward the mobile launcher platform below. Endeavour is currently targeted for rollover to the VAB July 5. Endeavour is the designated orbiter for mission STS-118, targeted for launch on Aug. 9 to the International Space Station. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the external stowage platform 3. Photo credit: NASA/Amanda Diller

KENNEDY SPACE CENTER, FLA. -- Inside the Vehicle Assembly Building, the external tank for Endeavour is being lowered toward the mobile launcher platform for mating with the solid rocket boosters. Endeavour is currently targeted for rollover to the VAB July 5. Endeavour is the designated orbiter for mission STS-118, targeted for launch on Aug. 9 to the International Space Station. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the external stowage platform 3. Photo credit: NASA/Amanda Diller

KENNEDY SPACE CENTER, FLA. -- The external tank for Endeavour is being lifted from the checkout cell inside the Vehicle Assembly Building for mating with the solid rocket boosters. Endeavour is currently targeted for rollover to the VAB July 5. Endeavour is the designated orbiter for mission STS-118, targeted for launch on Aug. 9 to the International Space Station. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the external stowage platform 3. Photo credit: NASA/Amanda Diller

JSC2007-E-40800 (5 Aug. 2007) --- An aerial view of part of the Kennedy Space Center's giant complex featuring the Space Shuttle Endeavour and its support stack of hardware on launch pad 39A, the Vehicle Assembly Building (VAB) and surrounding area. Endeavour's launch is scheduled for Aug. 8, 2007 at 6:36 p.m. (EDT) to begin the STS-118 mission. This image was photographed from a NASA T-38 aircraft.

KENNEDY SPACE CENTER, FLA. -- Inside the Vehicle Assembly Building, the external tank for Endeavour is lowered toward the mobile launcher platform for mating with the solid rocket boosters. Endeavour is currently targeted for rollover to the VAB July 5. In the background, at right, is one of the boosters. Endeavour is the designated orbiter for mission STS-118, targeted for launch on Aug. 9 to the International Space Station. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the external stowage platform 3. Photo credit: NASA/Amanda Diller

KENNEDY SPACE CENTER, FLA. -- Inside the Vehicle Assembly Building, the external tank for Endeavour is being lowered toward the mobile launcher platform for mating with the solid rocket boosters. Endeavour is currently targeted for rollover to the VAB July 5. On the lower end of the tank is seen the bipod fittings that connect the external tank to the orbiter through the shuttle's two forward attachment struts. Endeavour is the designated orbiter for mission STS-118, targeted for launch on Aug. 9 to the International Space Station. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the external stowage platform 3. Photo credit: NASA/Amanda Diller

KENNEDY SPACE CENTER, FLA. -- At sunset, Space Shuttle Endeavour, atop the lighted mobile launcher platform, exits the Vehicle Assembly Building for rollout to Launch Pad 39A. First motion out of the VAB was at 8:10 p.m. July 10, and the shuttle was hard down on the pad at 3:02 a.m. July 11. Seen below the orbiter's wings and attached to the launcher platform are the tail masts, which provide several umbilical connections to the orbiter, including a liquid-oxygen line through one and a liquid-hydrogen line through another. The shuttle and platform are being carried by the crawler-transporter. The trip will take between six and eight hours. Endeavour is scheduled to launch on mission STS-118 on Aug. 7. During the mission, Endeavour will carry into orbit the S5 truss, SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and will mark the first flight of Mission Specialist Barbara Morgan, the teacher-turned-astronaut whose association with NASA began more than 20 years ago. STS-118 will be the first flight since 2002 for Endeavour, which has undergone extensive modifications, including the addition of safety upgrades already added to orbiters Discovery and Atlantis. Photo credit: NASA/Tom Farrar

KENNEDY SPACE CENTER, FLA. -- Near sunset, Space Shuttle Endeavour, atop the mobile launcher platform, begins moving through the doors of the Vehicle Assembly Building for rollout to Launch Pad 39A. First motion out of the VAB was at 8:10 p.m. July 10, and the shuttle was hard down on the pad at 3:02 a.m. July 11. Seen below the orbiter's wings and attached to the launcher platform are the tail masts, which provide several umbilical connections to the orbiter, including a liquid-oxygen line through one and a liquid-hydrogen line through another. Endeavour is scheduled to launch on mission STS-118 on Aug. 7. During the mission, Endeavour will carry into orbit the S5 truss, SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and will mark the first flight of Mission Specialist Barbara Morgan, the teacher-turned-astronaut whose association with NASA began more than 20 years ago. STS-118 will be the first flight since 2002 for Endeavour, which has undergone extensive modifications, including the addition of safety upgrades already added to orbiters Discovery and Atlantis. Photo credit: NASA/Tom Farrar

KENNEDY SPACE CENTER, FLA. - Space Shuttle Endeavour is on Launch Pad 39A and ready for prelaunch processing after a nearly 7-hour trip from the Vehicle Assembly Building. First motion out of the VAB was at 8:10 p.m. July 10, and the shuttle was hard down on the pad at 3:02 a.m. July 11. At far left is the rotating service structure, which can be rolled around to enclose the shuttle for access during processing. Behind the shuttle is the fixed service structure, topped by an 80-foot-tall lightning mast. Endeavour is scheduled to launch on mission STS-118 on Aug. 7. During the mission, Endeavour will carry into orbit the S5 truss, SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and will mark the first flight of Mission Specialist Barbara Morgan, the teacher-turned-astronaut whose association with NASA began more than 20 years ago. STS-118 will be the first flight since 2002 for Endeavour, which has undergone extensive modifications, including the addition of safety upgrades already added to orbiters Discovery and Atlantis. Photo credit: NASA/Ken Thornsley

KENNEDY SPACE CENTER, FLA. - Space Shuttle Endeavour is on Launch Pad 39A and ready for prelaunch processing after a nearly 7-hour trip from the Vehicle Assembly Building. First motion out of the VAB was at 8:10 p.m. July 10, and the shuttle was hard down on the pad at 3:02 a.m. July 11. At far left is the rotating service structure, called the RSS, which can be rolled around to enclose the shuttle for access during processing. Between the RSS and the shuttle is the fixed service structure, topped by an 80-foot-tall lightning mast. Endeavour is scheduled to launch on mission STS-118 on Aug. 7. During the mission, Endeavour will carry into orbit the S5 truss, SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and will mark the first flight of Mission Specialist Barbara Morgan, the teacher-turned-astronaut whose association with NASA began more than 20 years ago. STS-118 will be the first flight since 2002 for Endeavour, which has undergone extensive modifications, including the addition of safety upgrades already added to orbiters Discovery and Atlantis. Photo credit: NASA/Ken Thornsley

KENNEDY SPACE CENTER, FLA. - Space Shuttle Endeavour rests on Launch Pad 39A after rolling out from the Vehicle Assembly Building over night. First motion out of the VAB was at 8:10 p.m. July 10, and the shuttle was hard down on the pad at 3:02 a.m. July 11. The shuttle sits on top of the mobile launcher platform. At far left is the rotating service structure, which can be rolled around to enclose the shuttle for access during processing. Behind it is the fixed service structure, topped by an 80-foot-tall lightning mast. At right is the 290-foot-tall water tank, which provides the deluge over the mobile launcher platform for sound suppression during liftoff. Endeavour is scheduled to launch on mission STS-118 on Aug. 7. During the mission, Endeavour will carry into orbit the S5 truss, SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and will mark the first flight of Mission Specialist Barbara Morgan, the teacher-turned-astronaut whose association with NASA began more than 20 years ago. STS-118 will be the first flight since 2002 for Endeavour, which has undergone extensive modifications, including the addition of safety upgrades already added to orbiters Discovery and Atlantis. Photo credit: NASA/Ken Thornsley

KENNEDY SPACE CENTER, FLA. - This closeup of Space Shuttle Endeavour on Launch Pad 39A shows the orbiter, one solid rocket booster and the external tank that make up the shuttle assembly. Behind the shuttle is the fixed service structure. The shuttle rests on the mobile launcher platform. The shuttle rolled out to the pad overnight. First motion out of the VAB was at 8:10 p.m. July 10, and the shuttle was hard down on the pad at 3:02 a.m. July 11. Endeavour is scheduled to launch on mission STS-118 on Aug. 7. During the mission, Endeavour will carry into orbit the S5 truss, SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and will mark the first flight of Mission Specialist Barbara Morgan, the teacher-turned-astronaut whose association with NASA began more than 20 years ago. STS-118 will be the first flight since 2002 for Endeavour, which has undergone extensive modifications, including the addition of safety upgrades already added to orbiters Discovery and Atlantis. Photo credit: NASA/Ken Thornsley

KENNEDY SPACE CENTER, FLA. -- The orbiter Endeavour, atop its transporter, rolls into the gaping doorway of the Vehicle Assembly Building. In the VAB, it will be stacked with the external tank and solid rocket boosters atop the mobile launcher platform for its launch on mission STS-118. The mission will be Endeavour's first flight in more than four years. The shuttle has undergone extensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and extend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- The orbiter Endeavour hangs nearly vertical above the transfer aisle of the Vehicle Assembly Building. It will be lifted into the upper levels of the VAB, moved to high bay 1 and stacked with the e1ternal tank and solid rocket boosters on the mobile launcher platform. Endeavour will be launched on mission STS-118, its first flight in more than four years. The shuttle has undergone e1tensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and e1tend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Charisse Nahser

KENNEDY SPACE CENTER, FLA. -- The orbiter Endeavour hangs vertically above the transfer aisle of the Vehicle Assembly Building. It will be lifted into the upper levels of the VAB, moved to high bay 1 and stacked with the e1ternal tank and solid rocket boosters on the mobile launcher platform. Endeavour will be launched on mission STS-118, its first flight in more than four years. The shuttle has undergone e1tensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and e1tend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Charisse Nahser

KENNEDY SPACE CENTER, FLA. -- The orbiter Endeavour, atop its transporter, is inside the Vehicle Assembly Building after rolling from the Orbiter Processing Facility bay 2. In the VAB, it will be stacked with the external tank and solid rocket boosters atop the mobile launcher platform for its launch on mission STS-118. The mission will be Endeavour's first flight in more than four years. The shuttle has undergone extensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and extend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- The orbiter Endeavour hangs above the transfer aisle of the Vehicle Assembly Building. The attached sling will raise it to vertical and lift it into the upper levels of the VAB. Then it will be moved to high bay 1 and stacked with the e1ternal tank and solid rocket boosters on the mobile launcher platform. Endeavour will be launched on mission STS-118, its first flight in more than four years. The shuttle has undergone e1tensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and e1tend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Charisse Nahser

KENNEDY SPACE CENTER, FLA. -- The Endeavour team gathers for a final farewell as the orbiter gets ready to roll to the Vehicle Assembly Building. In the VAB, it will be stacked with the external tank and solid rocket boosters atop the mobile launcher platform for its launch on mission STS-118. The mission will be Endeavour's first flight in more than four years. The shuttle has undergone extensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and extend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- After leaving the Orbiter Processing Facility bay 2, the orbiter Endeavour, atop its transporter, rolls to the Vehicle Assembly Building. In the VAB, it will be stacked with the external tank and solid rocket boosters atop the mobile launcher platform for its launch on mission STS-118. The mission will be Endeavour's first flight in more than four years. The shuttle has undergone extensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and extend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- The orbiter Endeavour, atop its transporter, rolls under the overhead crane in the transfer aisle of the Vehicle Assembly Building. In the VAB, the crane will lift the orbiter then lower it onto the mobile launcher platform where it will be stacked with the external tank and solid rocket boosters for launch on mission STS-118. The mission will be Endeavour's first flight in more than four years. The shuttle has undergone extensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and extend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The orbiter Endeavour, atop its transporter, stops under the overhead crane in the transfer aisle of the Vehicle Assembly Building. In the VAB, the crane will lift the orbiter then lower it onto the mobile launcher platform where it will be stacked with the external tank and solid rocket boosters for launch on mission STS-118. The mission will be Endeavour's first flight in more than four years. The shuttle has undergone extensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and extend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Hanging above the transfer aisle of the Vehicle Assembly Building, the orbiter Endeavour is raised to vertical. It will be lifted into the upper levels of the VAB, moved to high bay 1 and stacked with the e1ternal tank and solid rocket boosters on the mobile launcher platform. Endeavour will be launched on mission STS-118, its first flight in more than four years. The shuttle has undergone e1tensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and e1tend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Charisse Nahser

KENNEDY SPACE CENTER, FLA. -- After leaving the Orbiter Processing Facility bay 2, the orbiter Endeavour, atop its transporter, rolls toward the Vehicle Assembly Building. In the VAB, it will be stacked with the external tank and solid rocket boosters atop the mobile launcher platform for its launch on mission STS-118. The mission will be Endeavour's first flight in more than four years. The shuttle has undergone extensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and extend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- After leaving the Orbiter Processing Facility bay 2, the orbiter Endeavour, atop its transporter, rolls into the transfer aisle of the Vehicle Assembly Building. In the VAB, it will be stacked with the external tank and solid rocket boosters atop the mobile launcher platform for its launch on mission STS-118. The mission will be Endeavour's first flight in more than four years. The shuttle has undergone extensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and extend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The orbiter Endeavour hangs above the transfer aisle of the Vehicle Assembly Building. The attached sling will raise it to vertical and lift it into the upper levels of the VAB. Then it will be moved to high bay 1 and stacked with the e1ternal tank and solid rocket boosters on the mobile launcher platform. Endeavour will be launched on mission STS-118, its first flight in more than four years. The shuttle has undergone e1tensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and e1tend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Charisse Nahser

KENNEDY SPACE CENTER, FLA. -- Hanging above the transfer aisle of the Vehicle Assembly Building, the orbiter Endeavour is raised to vertical. It will be lifted into the upper levels of the VAB, moved to high bay 1 and stacked with the e1ternal tank and solid rocket boosters on the mobile launcher platform. Endeavour will be launched on mission STS-118, its first flight in more than four years. The shuttle has undergone e1tensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and e1tend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/Charisse Nahser

KENNEDY SPACE CENTER, FLA. -- The orbiter Endeavour, atop its transporter, rolls toward the gaping doorway of the Vehicle Assembly Building. In the VAB, it will be stacked with the external tank and solid rocket boosters atop the mobile launcher platform for its launch on mission STS-118. The mission will be Endeavour's first flight in more than four years. The shuttle has undergone extensive modifications, including the addition of safety upgrades already added to shuttles Discovery and Atlantis. Endeavour also features new hardware, such as the Station-to-Shuttle Power Transfer System that will allow the docked shuttle to draw electrical power from the station and extend its visits to the orbiting lab. Endeavour is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- Space Shuttle Endeavour is on Launch Pad 39A and ready for prelaunch processing after a nearly 7-hour trip from the Vehicle Assembly Building. First motion out of the VAB was at 8:10 p.m. July 10, and the shuttle was hard down on the pad at 3:02 a.m. July 11. The orbiter access arm is already extended to the orbiter from the fixed service structure at left. On top of the structure is the 80-foot-tall lightning mast that helps provide protection from lightning on the pad. The shuttle sits on a mobile launcher platform. Part of the platform and seen below the orbiter's wings are the tail masts, which provide several umbilical connections to the orbiter, including a liquid-oxygen line through one and a liquid-hydrogen line through another. Endeavour is scheduled to launch on mission STS-118 on Aug. 7. During the mission, Endeavour will carry into orbit the S5 truss, SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and will mark the first flight of Mission Specialist Barbara Morgan, the teacher-turned-astronaut whose association with NASA began more than 20 years ago. STS-118 will be the first flight since 2002 for Endeavour, which has undergone extensive modifications, including the addition of safety upgrades already added to orbiters Discovery and Atlantis. Photo credit: NASA/George Shelton