Astronauts Piers J. Sellers (left ) and David A. Wolf work on the newly installed Starboard One (S1) truss to the International Space Station (ISS) during the STS-112 mission. The primary payloads of this mission, ISS Assembly Mission 9A, were the Integrated Truss Assembly S1 (S One), the starboard side thermal radiator truss, and the Crew Equipment Translation Aid (CETA) cart to the ISS. The S1 truss provides structural support for the orbiting research facility's radiator panels, which use ammonia to cool the Station's complex power system. The S1 truss was attached to the S0 (S Zero) truss, which was launched on April 8, 2002 aboard the STS-110, and flows 637 pounds of anhydrous ammonia through three heat-rejection radiators. The truss is 45-feet long, 15-feet wide, 10-feet tall, and weighs approximately 32,000 pounds. The CETA cart was attached to the Mobil Transporter and will be used by assembly crews on later missions. Manufactured by the Boeing Company in Huntington Beach, California, the truss primary structure was transferred to the Marshall Space Flight Center in February 1999 for hardware installations and manufacturing acceptance testing. The launch of the STS-112 mission occurred on October 7, 2002, and its 11-day mission ended on October 18, 2002.

Being attached to the Canadarm2 on the International Space Station (ISS), the Remote Manipulator System arm built by the Canadian Space Agency, the Integrated Truss Assembly (S1) Truss is suspended over the Space Shuttle Orbiter Atlantis' cargo bay. Astronauts Sandra H. Magnus, STS-112 mission specialist, and Peggy A. Whitson, Expedition Five flight engineer, used the Canadarm2 from inside the Destiny laboratory on the ISS to lift the S1 truss out of the orbiter's cargo bay and move it into position prior to its installation on the ISS. The primary payloads of this mission, ISS Assembly Mission 9A, were the Integrated Truss Assembly S1 (S One), the starboard side thermal radiator truss, and the Crew Equipment Translation Aid (CETA) cart to the ISS. The S1 truss provides structural support for the orbiting research facility's radiator panels, which use ammonia to cool the Station's complex power system. The S1 truss was attached to the S0 (S Zero) truss, which was launched on April 8, 2002 aboard the STS-110, and flows 637 pounds of anhydrous ammonia through three heat-rejection radiators. The truss is 45-feet long, 15-feet wide, 10-feet tall, and weighs approximately 32,000 pounds. The CETA cart was attached to the Mobil Transporter and will be used by assembly crews on later missions. Manufactured by the Boeing Company in Huntington Beach, California, the truss primary structure was transferred to the Marshall Space Flight Center in February 1999 for hardware installations and manufacturing acceptance testing. The launch of the STS-112 mission occurred on October 7, 2002, and its 11-day mission ended on October 18, 2002.

STS097-374-015 (5 December 2000) --- This high angle view shows astronaut Carlos I. Noriega, STS-97 mission specialist, traversing over Endeavour's cargo bay during the flight's first space walk on Dec. 5, 2000. Astronaut Joseph R. Tanner, mission specialist, was near the top of the P6 truss structure when he exposed the 35mm frame. The Canadian-built Remote Manipulator System (RMS) arm, instrumental in the current operations, can be seen at bottom right.

STS097-374-020 (3 December 2000) --- This high angle view shows astronaut Carlos I. Noriega, STS-97 mission specialist, traversing over Endeavour's cargo bay during the flight's first space walk on Dec. 3, 2000. Astronaut Joseph R. Tanner, mission specialist, was near the top of the P6 truss structure when he exposed the 35mm frame. The Canadian-built Remote Manipulator System (RMS) arm can be seen at bottom right.

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility, STS-110 crew members look over the payload bay of Atlantis during Crew Equipment Integration Test activities, which include familiarization with the vehicle and payload. From left are Mission Specialist Jerry Ross, a technician, and Mission Specialist Lee Morin. The mission, 13th assembly flight to the International Space Station, includes the Integrated Truss Structure S0. The ITS S0 is the center segment on the Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is scheduled to launch April 4, 2002

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility, STS-110 Mission Specialists Rex Walheim (left) and Steven Smith (right) look over the payload bay of Atlantis during Crew Equipment Integration Test activities, which include familiarization with the vehicle and payload. . The mission, 13th assembly flight to the International Space Station, includes the Integrated Truss Structure S0. The ITS S0 is the center segment on the Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is scheduled to launch April 4, 2002

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility, STS-110 Mission Specialists Jerry Ross (upper right) and Lee Morin (lower right) check out the payload bay of Atlantis during Crew Equipment Integration Test activities, which include familiarization with the vehicle and payload. . The mission, 13th assembly flight to the International Space Station, includes the Integrated Truss Structure S0. The ITS S0 is the center segment on the Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is scheduled to launch April 4, 2002

KENNEDY SPACE CENTER, FLA. -- Standing underneath the orbiter Atlantis in the Orbiter Processing Facility are STS-110 Commander Michael Bloomfield and Mission Specialists Steven Smith and Rex Walheim. They and other crew members are taking part in Crew Equipment Integration Test activities, which include familiarization with the vehicle and payload. The mission, 13th assembly flight to the International Space Station, includes the Integrated Truss Structure S0. The ITS S0 is the center segment on the Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is scheduled to launch April 4, 2002

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility, STS-110 Commander Michael Bloomfield checks out a window in the cockpit of Atlantis during Crew Equipment Integration Test activities. The mission, 13th assembly flight to the International Space Station, includes the Integrated Truss Structure S0. The ITS S0 is the center segment on the Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is scheduled to launch April 4, 2002

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility, STS-110 Pilot Stephen Frick checks a window in the cockpit of Atlantis during Crew Equipment Integration Test activities. The mission, 13th assembly flight to the International Space Station, includes the Integrated Truss Structure S0. The ITS S0 is the center segment on the Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is scheduled to launch April 4, 2002

KENNEDY SPACE CENTER, FLA. -- KSC technicians supervise the offloading of the Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), onto a cargo transporter following its arrival at the Shuttle Landing Facility. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

KENNEDY SPACE CENTER, FLA. -- The Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), sits on a cargo transporter following its arrival at the Shuttle Landing Facility. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

KENNEDY SPACE CENTER, FLA. -- The Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), is offloaded onto a cargo transporter following its arrival at the Shuttle Landing Facility. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

KENNEDY SPACE CENTER, FLA. -- The Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), is offloaded onto a cargo transporter following its arrival at the Shuttle Landing Facility. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

KENNEDY SPACE CENTER, FLA. -- KSC technicians supervise the transfer of the Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), onto a cargo transporter following its arrival at the Shuttle Landing Facility. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

In the Space Station Processing Facility at NASA's Kennedy Space Center, a worker connects a cable to recharge the battery for the S6 integrated truss. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on space shuttle mission STS-119, whose launch date is not yet determined.

In the Space Station Processing Facility at NASA's Kennedy Space Center, workers prepare to connect cables that will recharge the battery for the S6 integrated truss. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on space shuttle mission STS-119, whose launch date is not yet determined.

In the Space Station Processing Facility at NASA's Kennedy Space Center, a worker holds a cable that will help recharge the battery for the S6 integrated truss. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on space shuttle mission STS-119, whose launch date is not yet determined.

KENNEDY SPACE CENTER, FLA. - In the Space Station Processing Facility, an overhead crane lifts the S3/S4 integrated truss structure from a rotation stand. The truss will be moved to a work stand. Along with a third set of solar arrays and batteries, the truss is scheduled to fly on mission STS-117 aboard Space Shuttle Atlantis to the International Space Station. The crew of six astronauts will install the truss to continue assembly of the station. Photo credit: NASA/Dimitri Gerondidakis

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, workers begin uncovering the Long Spacer (LS), the second and final piece of the S6 Integrated Truss Segment. Both the LS and the S6 Integrated Equipment Assembly (IEA) will undergo inspections and verifications tests to prepare them for flight to the International Space Station in early 2004. Although separate for now, the two segments will be integrated and fly as one on mission STS-119. Together the two pieces weigh 26,000 pounds and measure 45 feet long. The S6 is the 11th and final piece of the Station's Integrated Truss Structure, which will measure more than 300 feet in all. .

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, workers begin uncovering the Long Spacer (LS), the second and final piece of the S6 Integrated Truss Segment. Both the LS and the S6 Integrated Equipment Assembly (IEA) will undergo inspections and verifications tests to prepare them for flight to the International Space Station in early 2004. Although separate for now, the two segments will be integrated and fly as one on mission STS-119. Together the two pieces weigh 26,000 pounds and measure 45 feet long. The S6 is the 11th and final piece of the Station's Integrated Truss Structure, which will measure more than 300 feet in all. .

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, workers finish uncovering the Long Spacer (LS), the second and final piece of the S6 Integrated Truss Segment. Both the LS and the S6 Integrated Equipment Assembly (IEA) will undergo inspections and verifications tests to prepare them for flight to the International Space Station in early 2004. Although separate for now, the two segments will be integrated and fly as one on mission STS-119. Together the two pieces weigh 26,000 pounds and measure 45 feet long. The S6 is the 11th and final piece of the Station's Integrated Truss Structure, which will measure more than 300 feet in all. .

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, workers begin uncovering the Long Spacer (LS), the second and final piece of the S6 Integrated Truss Segment. Both the LS and the S6 Integrated Equipment Assembly (IEA) will undergo inspections and verifications tests to prepare them for flight to the International Space Station in early 2004. Although separate for now, the two segments will be integrated and fly as one on mission STS-119. Together the two pieces weigh 26,000 pounds and measure 45 feet long. The S6 is the 11th and final piece of the Station's Integrated Truss Structure, which will measure more than 300 feet in all. .

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, a worker begins uncovering the Long Spacer (LS), the second and final piece of the S6 Integrated Truss Segment. Both the LS and the S6 Integrated Equipment Assembly (IEA) will undergo inspections and verifications tests to prepare them for flight to the International Space Station in early 2004. Although separate for now, the two segments will be integrated and fly as one on mission STS-119. Together the two pieces weigh 26,000 pounds and measure 45 feet long. The S6 is the 11th and final piece of the Station's Integrated Truss Structure, which will measure more than 300 feet in all. .

KENNEDY SPACE CENTER, FLA. - During a Crew Equipment Interface Test, STS-112 Mission Specialist Piers Sellers looks at the engine on Atlantis, the designated orbiter for the mission. On the 15th assembly flight to the International Space Station, Atlantis and crew will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- STS-112 Mission Specialist David Wolf discusses flight equipment with two technicians during a Crew Equipment Interface Test at KSC. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- During a Crew Equipment Interface Test, STS-112 Pilot Pamela Melroy checks out the windshield on Atlantis, the designated orbiter for the mission. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- During a Crew Equipment Interface Test, STS-112 Commander Jeffrey Ashby checks out the windshield on Atlantis, the designated orbiter for the mission. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. - STS-112 Mission Specialist Piers Sellers checks out flight equipment during a Crew Equipment Interface Test at KSC. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- The Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), is offloaded from NASA's Super Guppy cargo airplane following its arrival at the Shuttle Landing Facility. The customized four-engine aricraft has a 24-foot-diameter fuselage and a foldaway nose enabling it to load and transport oversize cargo. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

KENNEDY SPACE CENTER, FLA. -- The Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), arrives at the Shuttle Landing Facility aboard NASA's Super Guppy cargo airplane. The customized four-engine aricraft has a 24-foot-diameter fuselage and a foldaway nose enabling it to load and transport oversize cargo. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

KENNEDY SPACE CENTER, FLA. -- The Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), arrives at the Shuttle Landing Facility aboard NASA's Super Guppy cargo airplane. The customized four-engine aricraft has a 24-foot-diameter fuselage and a foldaway nose enabling it to load and transport oversize cargo. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

KENNEDY SPACE CENTER, FLA. -- The Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), arrives at the Shuttle Landing Facility aboard NASA's Super Guppy cargo airplane. The customized four-engine aricraft has a 24-foot-diameter fuselage and a foldaway nose enabling it to load and transport oversize cargo. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

KENNEDY SPACE CENTER, FLA. -- The Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), is offloaded from NASA's Super Guppy cargo airplane following its arrival at the Shuttle Landing Facility. The customized four-engine aricraft has a 24-foot-diameter fuselage and a foldaway nose enabling it to load and transport oversize cargo. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

KENNEDY SPACE CENTER, FLA. -- The Integrated Equipment Assembly (IEA), one of two major components of the Starboard 6 (S6) truss segment for the International Space Station (ISS), is revealed inside NASA's Super Guppy cargo airplane following its arrival at the Shuttle Landing Facility. The customized four-engine aricraft has a 24-foot-diameter fuselage and a foldaway nose enabling it to load and transport oversize cargo. The IEA will be joined to its companion piece, the Long Spacer, before launch early in 2004. The S6 truss segment will be the 11th and final piece of the Station's Integrated Truss Structure and will support the fourth and final set of solar arrays, batteries, and electronics.

KENNEDY SPACE CENTER, FLA. - In the Space Station Processing Facility, an overhead crane is being attached to the S3/S4 integrated truss structure in order to move it from a rotation stand to a work stand. Along with a third set of solar arrays and batteries, the truss is scheduled to fly on mission STS-117 aboard Space Shuttle Atlantis to the International Space Station. The crew of six astronauts will install the truss to continue assembly of the station. Photo credit: NASA/Dimitri Gerondidakis

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, workers check the starboard integrated truss, known as S6, after its full rotation. The truss was rotated in order to remove and replace lower deck batteries. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on the STS-119 space shuttle mission, whose launch date is not yet determined. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. - In the Space Station Processing Facility, the S3/S4 integrated truss structure (background, right) rests on a work stand. It was moved from a rotation stand at left. Along with a third set of solar arrays and batteries, the truss is scheduled to fly on mission STS-117 aboard Space Shuttle Atlantis to the International Space Station. The crew of six astronauts will install the truss to continue assembly of the station. Photo credit: NASA/Dimitri Gerondidakis

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, workers check the starboard integrated truss, known as S6, after its full rotation. The truss was rotated in order to remove and replace lower deck batteries. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on the STS-119 space shuttle mission, whose launch date is not yet determined. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, workers stand ready as the starboard integrated truss, known as S6, is three-fourths of the way through its rotation. The truss is being rotated in order to remove and replace lower deck batteries. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on the STS-119 space shuttle mission, whose launch date is not yet determined. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, workers get ready to rotate the starboard integrated truss, known as S6. The truss is being rotated in order to remove and replace lower deck batteries. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on the STS-119 space shuttle mission, whose launch date is not yet determined. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. - In the Space Station Processing Facility, an overhead crane lowers the S3/S4 integrated truss structure onto a work stand. It was moved from a rotation stand at left. Along with a third set of solar arrays and batteries, the truss is scheduled to fly on mission STS-117 aboard Space Shuttle Atlantis to the International Space Station. The crew of six astronauts will install the truss to continue assembly of the station. Photo credit: NASA/Dimitri Gerondidakis

KENNEDY SPACE CENTER, FLA. - Suspended from an overhead crane, the orbiter Atlantis is lowered toward the solid rocket booster and external tank below, on top of the Mobile Launcher Platform, for mating before rollout to the launch pad for mission STS-112. Launch is scheduled no earlier than Oct. 2 for the 15th assembly flight to the International Space Station. Atlantis will carry the S1 Integrated Truss Structure, which will be attached to the central truss segment, the S0 truss, during the mission.

KENNEDY SPACE CENTER, FLA. -- After lifting to vertical, the orbiter Atlantis is moved toward the solid rocket booster and external tank below, on top of the Mobile Launcher Platform, for mating before rollout to the launch pad for mission STS-112. Launch is scheduled no earlier than Oct. 2 for the 15th assembly flight to the International Space Station. Atlantis will carry the S1 Integrated Truss Structure, which will be attached to the central truss segment, the S0 truss, during the mission.

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, the starboard integrated truss, known as S6, is half way through its rotation. The truss is being rotated in order to remove and replace lower deck batteries. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on the STS-119 space shuttle mission, whose launch date is not yet determined. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- STS-113 Commander James Wetherbee arrives at KSC's Shuttle Landing Facility to get ready for launch. STS-113 is the 16th American assembly flight to the International Space Station. The primary objective of the mission is bringing the Expedition 6 crew to the Station and returning the Expedition 5 crew to Earth. The major task of the mission is delivery of the Port 1 (P1) Integrated Truss Assembly, which will be attached to the port side of the S0 truss. Three spacewalks are planned to install and activate the truss and its associated equipment. Launch of Space Shuttle Endeavour on mission STS-113 is targeted for no earlier than Nov. 22 between 7 and 11 p.m. EST.

KENNEDY SPACE CENTER, FLA. - STS-113 Commander James Wetherbee arrives at the KSC Shuttle Landing Facility to get ready for launch. STS-113 is the 16th American assembly flight to the International Space Station. The primary mission is bringing the Expedition 6 crew to the Station and returning the Expedition 5 crew to Earth. The major objective of the mission is delivery of the Port 1 (P1) Integrated Truss Assembly, which will be attached to the port side of the S0 truss. Three spacewalks are planned to install and activate the truss and its associated equipment. Launch of Space Shuttle Endeavour on mission STS-113 is scheduled for Nov. 11 between midnight and 4 a.m. EST.

KENNEDY SPACE CENTER, FLA. - STS-113 Pilot Paul Lockhart arrives at the KSC Shuttle Landing Facility to get ready for launch. STS-113 is the 16th American assembly flight to the International Space Station. The primary mission is bringing the Expedition 6 crew to the Station and returning the Expedition 5 crew to Earth. The major objective of the mission is delivery of the Port 1 (P1) Integrated Truss Assembly, which will be attached to the port side of the S0 truss. Three spacewalks are planned to install and activate the truss and its associated equipment. Launch of Space Shuttle Endeavour on mission STS-113 is scheduled for Nov. 11 between midnight and 4 a.m. EST.

KENNEDY SPACE CENTER, FLA. - STS-113 Mission Specialist John Herrington arrives at the KSC Shuttle Landing Facility to get ready for launch. STS-113 is the 16th American assembly flight to the International Space Station. The primary mission is bringing the Expedition 6 crew to the Station and returning the Expedition 5 crew to Earth. The major objective of the mission is delivery of the Port 1 (P1) Integrated Truss Assembly, which will be attached to the port side of the S0 truss. Three spacewalks are planned to install and activate the truss and its associated equipment. Launch of Space Shuttle Endeavour on mission STS-113 is scheduled for Nov. 11 between midnight and 4 a.m. EST.

KENNEDY SPACE CENTER, FLA. - STS-113 Mission Specialist Michael Lopez-Alegria arrives at the KSC Shuttle Landing Facility to get ready for launch. STS-113 is the 16th American assembly flight to the International Space Station. The primary mission is bringing the Expedition 6 crew to the Station and returning the Expedition 5 crew to Earth. The major objective of the mission is delivery of the Port 1 (P1) Integrated Truss Assembly, which will be attached to the port side of the S0 truss. Three spacewalks are planned to install and activate the truss and its associated equipment. Launch of Space Shuttle Endeavour on mission STS-113 is scheduled for Nov. 11 between midnight and 4 a.m. EST.

KENNEDY SPACE CENTER, FLA. -- Space Shuttle Atlantis arrives on the hardstand on Launch Pad 39A after a six-hour trek, via the crawler-transporter, from the Vehicle Assembly Building. The first motion out of the assembly building was at 8:19 a.m. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Space Shuttle Atlantis arrives on the hardstand on Launch Pad 39A after a six-hour trek, via the crawler-transporter, from the Vehicle Assembly Building. The first motion out of the assembly building was at 8:19 a.m. At left is the open rotating service structure that will be rolled to enclose the shuttle for protection. Next to the shuttle is the fixed service structure. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Space Shuttle Atlantis arrives on the hardstand on Launch Pad 39A after a six-hour trek, via the crawler-transporter, from the Vehicle Assembly Building. The first motion out of the assembly building was at 8:19 a.m. In the background is the blue Atlantic Ocean. At left is the box-like structure known as the White Room that sits at the end of the orbiter access arm. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

This image of the International Space Station (ISS) was photographed by one of the crewmembers of the STS-112 mission following separation from the Space Shuttle Orbiter Atlantis as the orbiter pulled away from the ISS. The newly added S1 truss is visible in the center frame. The primary payloads of this mission, International Space Station Assembly Mission 9A, were the Integrated Truss Assembly S-1 (S-One), the Starboard Side Thermal Radiator Truss,and the Crew Equipment Translation Aid (CETA) cart to the ISS. The S1 truss provides structural support for the orbiting research facility's radiator panels, which use ammonia to cool the Station's complex power system. The S1 truss was attached to the S0 (S Zero) truss, which was launched on April 8, 2002 aboard the STS-110, and flows 637 pounds of anhydrous ammonia through three heat rejection radiators. The truss is 45-feet long, 15-feet wide, 10-feet tall, and weighs approximately 32,000 pounds. The CETA cart was attached to the Mobil Transporter and will be used by assembly crews on later missions. Manufactured by the Boeing Company in Huntington Beach, California, the truss primary structure was transferred to the Marshall Space Flight Center in February 1999 for hardware installations and manufacturing acceptance testing. The launch of the STS-112 mission occurred on October 7, 2002, and its 11-day mission ended on October 18, 2002.

KENNEDY SPACE CENTER, FLA. -- In the Operations and Checkout Building, STS-110 Mission Specialist Lee Morin looks over equipment that will be on the mission. Other crew members (not shown) are Commander Michael J. Bloomfield, Pilot Stephen N. Frick, and Mission Specialists Steven L. Smith, Ellen Ochoa and Rex J. Walheim. Part of the payload on the mission is the Integrated Truss Structure S0. It is the center segment that they will be installing on the International Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is currently scheduled to launch in April 2002

KENNEDY SPACE CENTER, FLA. -- In the Operations and Checkout Building, members of the STS-110 crew check out equipment that will be on their mission. From left are Mission Specialists Steven Smith, Lee Morin, Jerry Ross and Rex Walheim. Other crew members (not shown) are Commander Michael J. Bloomfield, Pilot Stephen N. Frick, and Mission Specialist Ellen Ochoa. Part of the payload on the mission is the Integrated Truss Structure S0. It is the center segment that they will be installing on the International Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is currently scheduled to launch in April 2002

KENNEDY SPACE CENTER, FLA. -- The Long Spacer (LS), the second and final piece of the Starboard 6 (S6) Integrated Truss Segment, rolls out of NASA's Super Guppy cargo airplane. The LS will be transported to the Space Station Processing Facility for inspections and verification tests. Eventually the LS will be integrated with the S6 Integrated Equipment Assembly already at KSC and will fly as one segment to the International Space Station on Space Shuttle mission STS-119 in early 2004. Together the segment pieces weigh 26,000 pounds and measure 45 feet long. .

KENNEDY SPACE CENTER, FLA. -- The Long Spacer (LS), the second and final piece of the Starboard 6 (S6) Integrated Truss Segment, is secured on a flatbed truck for transport to the Space Station Processing Facility where it will undergo inspections and verification tests. Eventually the LS will be integrated with the S6 Integrated Equipment Assembly already at KSC and will fly as one segment to the International Space Station on Space Shuttle mission STS-119 in early 2004. Together the segment pieces weigh 26,000 pounds and measure 45 feet long. .

This image of the International Space Station (ISS) was photographed by one of the crewmembers of the STS-112 mission following separation from the Space Shuttle Orbiter Atlantis as the orbiter pulled away from the ISS. The primary payloads of this mission, International Space Station Assembly Mission 9A, were the Integrated Truss Assembly S1 (S-One), the Starboard Side Thermal Radiator Truss, and the Crew Equipment Translation Aid (CETA) cart to the ISS. The S1 truss provides structural support for the orbiting research facility's radiator panels, which use ammonia to cool the Station's complex power system. The S1 truss was attached to the S0 (S Zero) truss, which was launched on April 8, 2002 aboard the STS-110, and flows 637 pounds of anhydrous ammonia through three heat-rejection radiators. The truss is 45-feet long, 15-feet wide, 10-feet tall, and weighs approximately 32,000 pounds. The CETA cart was attached to the Mobil Transporter and will be used by assembly crews on later missions. Manufactured by the Boeing Company in Huntington Beach, California, the truss primary structure was transferred to the Marshall Space Flight Center in February 1999 for hardware installations and manufacturing acceptance testing. The launch of the STS-112 mission occurred on October 7, 2002, and its 11-day mission ended on October 18, 2002.

This image shows the Integrated Truss Assembly S-1 (S-One), the Starboard Side Thermal Radiator Truss, for the International Space Station (ISS) undergoing final construction in the Space Station manufacturing facility at the Marshall Space Flight Center. The S1 truss provides structural support for the orbiting research facility's radiator panels, which use ammonia to cool the Station's complex power system. Delivered and installed by the STS-112 mission, the S1 truss, attached to the S0 (S Zero) truss installed by the previous STS-110 mission, flows 637 pounds of anhydrous ammonia through three heat rejection radiators. The truss is 45-feet long, 15-feet wide, 10-feet tall, and weighs approximately 32,000 pounds. Manufactured by the Boeing Company in Huntington Beach, California, the truss primary structure was transferred to the Marshall Space Flight Center in February 1999 for hardware installations and manufacturing acceptance testing.

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, a worker connects a cable to recharge the battery for the S6 integrated truss. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on space shuttle mission STS-119, whose launch date is not yet determined. Photo credit: NASA/George Shelton

An overhead crane in the Space Station Processing Facility moves an S-band Antenna Support Assembly (SASA) to the Integrated Truss Structure (ITS) Z1, an element of the International Space Station. . The antenna will be attached to the truss. The SASA antenna is primarily for local communications between the orbiter and Space Station. The Z1 is an early exterior framework to allow the first U.S. solar arrays, on mission STS-97, flight 4A, to be temporarily installed on Unity for early power. The Z1 is scheduled on mission STS-92, the fifth flight to the Space Station, in the fall

KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39B, Space Shuttle Atlantis' payload bay doors are ready to be closed. The Shuttle payload includes the S0 Integrated Truss Structure (ITS), the Canadian Mobile Transporter, power distribution system modules, a heat pipe radiator for cooling, computers and a pair of rate gyroscopes. The mission is the 13th assembly flight to the ISS and includes four spacewalks to attach the S0 truss to the U.S. Lab Destiny. Launch is scheduled for April 4.

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, workers stand ready as the starboard integrated truss, known as S6, is rotated in order to remove and replace lower deck batteries. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on the STS-119 space shuttle mission, whose launch date is not yet determined. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- STS-110 Mission Specialist Ellen Ochoa has a final check of her launch and entry suit in preparation for launch April 4. This flight will be her fourth. The STS-110 payload includes the S0 Integrated Truss Structure (ITS), the Canadian Mobile Transporter, power distribution system modules, a heat pipe radiator for cooling, computers and a pair of rate gyroscopes. The 11-day mission is the 13th assembly flight to the ISS and includes four spacewalks to attach the S0 truss to the U.S. Lab Destiny

Extravehicular Activity (EVA) suits packed inside containers arrive at the Space Station Processing Facility from Johnson Space Center in Texas. The suits will be used by STS-117 crew members to perform several spacewalks during the mission. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station.

In the Space Station Processing Facility, workers prepare an S-band Antenna Support Assembly (SASA) to be lifted and moved to the Integrated Truss Structure (ITS) Z1, an element of the International Space Station. The antenna will be attached to the truss. The SASA antenna is primarily for local communications between the orbiter and Space Station. The Z1 is an early exterior framework to allow the first U.S. solar arrays, on mission STS-97, flight 4A, to be temporarily installed on Unity for early power. The Z1 is scheduled on mission STS-92, the fifth flight to the Space Station, in the fall

KENNEDY SPACE CENTER, FLA. -- At Launch Pad 39B, Space Shuttle Atlantis' payload bay doors are ready to be closed. The Shuttle payload includes the S0 Integrated Truss Structure (ITS), the Canadian Mobile Transporter, power distribution system modules, a heat pipe radiator for cooling, computers and a pair of rate gyroscopes. The mission is the 13th assembly flight to the ISS and includes four spacewalks to attach the S0 truss to the U.S. Lab Destiny. Launch is scheduled for April 4.

KENNEDY SPACE CENTER, FLA. -- The payload canister on its transporter passes the Vehicle Assembly Building at NASA's Kennedy Space Center, heading for Launch Pad 39A. The canister contains the S3/S4 integrated truss for mission STS-117 to the International Space Station aboard Space Shuttle Atlantis. The Atlantis crew will install the new truss segment, retract a set of solar arrays and unfold a new set on the starboard side of the station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, workers stand ready as the starboard integrated truss, known as S6, is rotated in order to remove and replace lower deck batteries. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on the STS-119 space shuttle mission, whose launch date is not yet determined. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. - A worker at Launch Pad 39B prepares for the closing of Space Shuttle Atlantis' payload bay doors. The Shuttle payload includes the S0 Integrated Truss Structure (ITS), the Canadian Mobile Transporter, power distribution system modules, a heat pipe radiator for cooling, computers and a pair of rate gyroscopes. The mission is the 13th assembly flight to the ISS and includes four spacewalks to attach the S0 truss to the U.S. Lab Destiny. Launch is scheduled for April 4.

KENNEDY SPACE CENTER, FLA. -- Extravehicular Activity (EVA) suits packed inside containers arrive at the Space Station Processing Facility from Johnson Space Center in Texas. The suits will be used by STS-117 crew members to perform several spacewalks during the mission. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Photo credit: NASA/George Shelton.

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, a worker holds a cable that will help recharge the battery for the S6 integrated truss. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on space shuttle mission STS-119, whose launch date is not yet determined. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, a worker connects a cable to recharge the battery for the S6 integrated truss. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on space shuttle mission STS-119, whose launch date is not yet determined. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility at NASA's Kennedy Space Center, workers prepare to connect cables that will recharge the battery for the S6 integrated truss. The final starboard truss in the assembly of the International Space Station, the S6 is scheduled to fly on space shuttle mission STS-119, whose launch date is not yet determined. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- The morning light spills through the open door of the Vehicle Assembly Building as Space Shuttle Atlantis begins rolling out to Launch Pad 39A. First motion was at 8:19 a.m. The 3.4-mile trip along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- On a slow roll, Space Shuttle Atlantis moves through the open door of the Vehicle Assembly Building for the journey to Launch Pad 39A. First motion was at 8:19 a.m. The 3.4-mile trip along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Lined up on the horizon are Space Shuttle Atlantis, the rotating and fixed service structures of Launch Pad 39A, Launch Pad 39B, and the 300-gallon water tower of Pad 39A. The shuttle has spent six hours rolling out to Pad 39A, leaving the Vehicle Assembly Building at 8:19 a.m. The body of water in the foreground is the Banana River. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Ken Thornsley

KENNEDY SPACE CENTER, FLA. -- Viewed from above, Space Shuttle Atlantis begins moving through the open door of the Vehicle Assembly Building for the rollout to Launch Pad 39A. First motion was at 8:19 a.m. The 3.4-mile trip along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Space Shuttle Atlantis passes the turn basin as it slowly wends its way toward Launch Pad 39A. First motion out of the Vehicle Assembly Building was at 8:19 a.m. The 3.4-mile trip to the pad along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Ken Thornsley

KENNEDY SPACE CENTER, FLA. -- Majestic in its formation, Space Shuttle Atlantis begins moving through the open door of the Vehicle Assembly Building for the rollout to Launch Pad 39A. First motion was at 8:19 a.m. The 3.4-mile trip along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Space Shuttle Atlantis is poised inside the Vehicle Assembly Building to begin its slow rollout to Launch Pad 39A. A shuttle comprises the orbiter, external tank and twin solid rocket boosters. The 3.4-mile trip along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The morning light streams through the open door of the Vehicle Assembly Building as Space Shuttle Atlantis begins rolling out to Launch Pad 39A. First motion was at 8:19 a.m. The 3.4-mile trip along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the clear morning light, Space Shuttle Atlantis , atop the mobile launcher platform and crawler-transporter, slowly makes its way to Launch Pad 39A. First motion out of the Vehicle Assembly Building was at 8:19 a.m. The 3.4-mile trip to the pad along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Ken Thornsley

KENNEDY SPACE CENTER, FLA. -- Flags are flying at the entrance to Launch Pad 39A, where Space Shuttle Atlantis has come to a stop. At left are the rotating and fixed service structures; at right is the 300-gallon water tower. The shuttle has spent six hours rolling out to Pad 39A, leaving the Vehicle Assembly Building at 8:19 a.m. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Ken Thornsley

KENNEDY SPACE CENTER, FLA. -- Sunlight bathes Space Shuttle Atlantis and oak Leaves frame the image as the shuttle moves slowly toward Launch Pad 39A. First motion out of the Vehicle Assembly Building was at 8:19 a.m. The 3.4-mile trip to the pad along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Across the expanse of the turn basin, Space Shuttle Atlantis is seen as it creeps toward Launch Pad 39A. At left is the 525-foot-tall Vehicle Assembly Building. First motion was at 8:19 a.m. The 3.4-mile trip along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Pelicans and seagulls witness the slow rollout of Space Shuttle Atlantis to Launch Pad 39A. First motion out of the Vehicle Assembly Building was at 8:19 a.m. The 3.4-mile trip to the pad along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Ken Thornsley

KENNEDY SPACE CENTER, FLA. -- Space Shuttle Atlantis, atop the mobile launcher platform and crawler-transporter, slowly makes its way to Launch Pad 39A, at left. First motion of the shuttle out of the Vehicle Assembly Building was at 8:19 a.m. The 3.4-mile trip to the pad along the crawlerway takes about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the clear morning light, Space Shuttle Atlantis, atop the mobile launcher platform and crawler-transporter, slowly makes its way to Launch Pad 39A. First motion out of the Vehicle Assembly Building was at 8:19 a.m. The 3.4-mile trip to the pad along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- As Space Shuttle Atlantis, atop the mobile launcher platform and crawler-transporter, slowly makes its way to Launch Pad 39A, it passes the payload canister (foreground) that delivered the payload to the pad. First motion of the shuttle out of the Vehicle Assembly Building was at 8:19 a.m. The 3.4-mile trip to the pad along the crawlerway takes about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Atop the massive mobile launcher platform and crawler-transporter, Space Shuttle Atlantis looms above a flock of pelicans perched on the retaining wall below. The shuttle is rolling out to Launch Pad 39A. First motion out of the Vehicle Assembly Building was at 8:19 a.m. The 3.4-mile trip to the pad along the crawlerway will take about 6 hours. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Launch is targeted for March 15. Photo credit: NASA/Ken Thornsley

KENNEDY SPACE CENTER, FLA. -- Members of the STS-112 crew check out flight equipment during a Crew Equipment Interface Test at KSC. Clockwise from front are Pilot Pamela Melroy, Commander Jeffrey Ashby, a technician, and Mission Specialist David Wolf. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- During a Crew Equipment Interface Test, STS-112 Pilot Pamela Melroy (left) and Commander Jeffrey Ashby (right) look at the outside of the windshield on Atlantis, the designated orbiter for the mission. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- Accompanied by a technician, STS-112 Pilot Pamela Melroy (left) and Mission Specialist David Wolf (right) look at the payload and equipment in the bay of Atlantis during a Crew Equipment Interface Test at KSC. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- STS-112 Mission Specialist David Wolf (right) and Pilot Pamela Melroy (left) look at equipment in the payload bay of Atlantis during a Crew Equipment Interface Test at KSC. In the background, right, is Commander Jeffrey Ashby. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- During a Crew Equipment Interface Test, STS-112 Mission Specialist Piers Sellers (foreground) points to an engine line on Atlantis, the designated orbiter for the mission, while Commander Jeffrey Ashby (behind) looks on. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- Accompanied by two technicians (in green), STS-112 Mission Specialist David Wolf and Pilot Pamela Melroy look at the payload bay of Atlantis during a Crew Equipment Interface Test at KSC. In the background, right, is Commander Jeffrey Ashby. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- During a Crew Equipment Interface Test, STS-112 Mission Specialist Fyodor Yurchikhin looks at Atlantis, the designated orbiter for the mission. Yurchikhin is with the Russian Space Agency. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002

KENNEDY SPACE CENTER, FLA. -- During a Crew Equipment Interface Test, STS-112 Pilot Pamela Melroy (right) points to an area of equipment inventory while Commander Jeffrey Ashby looks on. At left, two technicians help out. STS-112 is the 15th assembly flight to the International Space Station and will be ferrying the S1 Integrated Truss Structure. The S1 truss is the first starboard (right-side) truss segment, whose main job is providing structural support for the radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. The S1 truss will be attached to the S0 truss. STS-112 is currently scheduled for launch Aug. 22, 2002