In the Payload Hazardous Servicing Facility, technicians prepare to install the heat shield on the Phoenix Mars Lander spacecraft. The Phoenix mission is the first project in NASA's first openly competed program of Mars Scout missions. Phoenix will land in icy soils near the north polar permanent ice cap of Mars and explore the history of the water in these soils and any associated rocks, while monitoring polar climate. Landing is planned in May 2008 on arctic ground where a mission currently in orbit, Mars Odyssey, has detected high concentrations of ice just beneath the top layer of soil. It will serve as NASA's first exploration of a potential modern habitat on Mars and open the door to a renewed search for carbon-bearing compounds, last attempted with NASA's Viking missions in the 1970s. A stereo color camera and a weather station will study the surrounding environment while the other instruments check excavated soil samples for water, organic chemicals and conditions that could indicate whether the site was ever hospitable to life. Microscopes can reveal features as small as one one-thousandth the width of a human hair. Launch of Phoenix aboard a Delta II rocket is targeted for Aug. 3 from Cape Canaveral Air Force Station in Florida.

In the Payload Hazardous Servicing Facility, the heat shield for the Phoenix Mars Lander is moved into position for installation on the spacecraft. The Phoenix mission is the first project in NASA's first openly competed program of Mars Scout missions. Phoenix will land in icy soils near the north polar permanent ice cap of Mars and explore the history of the water in these soils and any associated rocks, while monitoring polar climate. Landing is planned in May 2008 on arctic ground where a mission currently in orbit, Mars Odyssey, has detected high concentrations of ice just beneath the top layer of soil. It will serve as NASA's first exploration of a potential modern habitat on Mars and open the door to a renewed search for carbon-bearing compounds, last attempted with NASA's Viking missions in the 1970s. A stereo color camera and a weather station will study the surrounding environment while the other instruments check excavated soil samples for water, organic chemicals and conditions that could indicate whether the site was ever hospitable to life. Microscopes can reveal features as small as one one-thousandth the width of a human hair. Launch of Phoenix aboard a Delta II rocket is targeted for Aug. 3 from Cape Canaveral Air Force Station in Florida.

In the Payload Hazardous Servicing Facility, technicians install the heat shield on the Phoenix Mars Lander spacecraft. The Phoenix mission is the first project in NASA's first openly competed program of Mars Scout missions. Phoenix will land in icy soils near the north polar permanent ice cap of Mars and explore the history of the water in these soils and any associated rocks, while monitoring polar climate. Landing is planned in May 2008 on arctic ground where a mission currently in orbit, Mars Odyssey, has detected high concentrations of ice just beneath the top layer of soil. It will serve as NASA's first exploration of a potential modern habitat on Mars and open the door to a renewed search for carbon-bearing compounds, last attempted with NASA's Viking missions in the 1970s. A stereo color camera and a weather station will study the surrounding environment while the other instruments check excavated soil samples for water, organic chemicals and conditions that could indicate whether the site was ever hospitable to life. Microscopes can reveal features as small as one one-thousandth the width of a human hair. Launch of Phoenix aboard a Delta II rocket is targeted for Aug. 3 from Cape Canaveral Air Force Station in Florida.

In the Payload Hazardous Servicing Facility, technicians complete the installation of the heat shield on the Phoenix Mars Lander spacecraft. The Phoenix mission is the first project in NASA's first openly competed program of Mars Scout missions. Phoenix will land in icy soils near the north polar permanent ice cap of Mars and explore the history of the water in these soils and any associated rocks, while monitoring polar climate. Landing is planned in May 2008 on arctic ground where a mission currently in orbit, Mars Odyssey, has detected high concentrations of ice just beneath the top layer of soil. It will serve as NASA's first exploration of a potential modern habitat on Mars and open the door to a renewed search for carbon-bearing compounds, last attempted with NASA's Viking missions in the 1970s. A stereo color camera and a weather station will study the surrounding environment while the other instruments check excavated soil samples for water, organic chemicals and conditions that could indicate whether the site was ever hospitable to life. Microscopes can reveal features as small as one one-thousandth the width of a human hair. Launch of Phoenix aboard a Delta II rocket is targeted for Aug. 3 from Cape Canaveral Air Force Station in Florida.

In the Payload Hazardous Servicing Facility, the Phoenix Mars Lander spacecraft undergoes spin testing. The Phoenix mission is the first project in NASA's first openly competed program of Mars Scout missions. Phoenix will land in icy soils near the north polar permanent ice cap of Mars and explore the history of the water in these soils and any associated rocks, while monitoring polar climate. Landing is planned in May 2008 on arctic ground where a mission currently in orbit, Mars Odyssey, has detected high concentrations of ice just beneath the top layer of soil. It will serve as NASA's first exploration of a potential modern habitat on Mars and open the door to a renewed search for carbon-bearing compounds, last attempted with NASA's Viking missions in the 1970s. A stereo color camera and a weather station will study the surrounding environment while the other instruments check excavated soil samples for water, organic chemicals and conditions that could indicate whether the site was ever hospitable to life. Microscopes can reveal features as small as one one-thousandth the width of a human hair. Launch of Phoenix aboard a Delta II rocket is targeted for Aug. 3 from Cape Canaveral Air Force Station in Florida.

In the Payload Hazardous Servicing Facility, the Phoenix Mars Lander spacecraft undergoes spin testing. The Phoenix mission is the first project in NASA's first openly competed program of Mars Scout missions. Phoenix will land in icy soils near the north polar permanent ice cap of Mars and explore the history of the water in these soils and any associated rocks, while monitoring polar climate. Landing is planned in May 2008 on arctic ground where a mission currently in orbit, Mars Odyssey, has detected high concentrations of ice just beneath the top layer of soil. It will serve as NASA's first exploration of a potential modern habitat on Mars and open the door to a renewed search for carbon-bearing compounds, last attempted with NASA's Viking missions in the 1970s. A stereo color camera and a weather station will study the surrounding environment while the other instruments check excavated soil samples for water, organic chemicals and conditions that could indicate whether the site was ever hospitable to life. Microscopes can reveal features as small as one one-thousandth the width of a human hair. Launch of Phoenix aboard a Delta II rocket is targeted for Aug. 3 from Cape Canaveral Air Force Station in Florida.

KENNEDY SPACE CENTER, FLA. - In the Space Station Processing Facility, members of several Space Shuttle mission crews get a close look at the Video Stanchion Support Assembly (VSSA) that will fly on STS-114 (Logistics Flight 1). From left are STS-118 Mission Specialist Barbara Morgan, STS-116 Mission Specialist Christer Fuglesang (European Space Agency), and STS-118 Mission Specialists Scott Parazynski and Dafydd Williams (Canadian Space Agency). The crews are at KSC for equipment familiarization.

KENNEDY SPACE CENTER, Fla. -- STS-118 crew members get a close look at the payloads installed in Space Shuttle Endeavour. Seen here are Mission Specialist Alvin Drew (left) and Pilot Charlie Hobaugh. The STS-118 crew has been at Kennedy for terminal countdown demonstration test activities that also include M-113 training, emergency egress training at the pad and a simulated launch countdown. The mission is the 22nd flight to the International Space Station and Space Shuttle Endeavour will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

STS118-S-078 (21 Aug. 2007) --- Astronaut Dave Williams, mission specialist representing the Canadian Space Agency, answers questions during the STS-118 post flight crew press conference. Williams and the rest of STS-118 crew members landed onboard the space shuttle Endeavour Aug. 21, 2007, at the Kennedy Space Center, Florida. Photo Credit: NASA/Bill Ingalls

KENNEDY SPACE CENTER, FLA. -- In Endeavour's payload bay in Orbiter Processing Facility bay 2, STS-118 crew members get a close look at components in the bay. In front, at right, is Commander Scott Kelly. Behind him is Mission Specialist Barbara Morgan. They and other crew members are at KSC for crew equipment interface test activities. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, Fla. -- Practicing emergency egress from Launch Pad 39A, STS-118 Mission Specialists Alvin Drew and Barbara R. Morgan join another crew member in a slidewire basket. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. Other crew members are Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Dave Williams, Rick Mastracchio and Tracy Caldwell. Williams represents the Canadian Space Agency. The STS-118 mission on Space Shuttle Endeavour is the 22nd flight to the International Space Station and will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- Members of the STS-118 crew take part in a hardware review of the SPACEHAB module, part of the payload on their mission. Seen here is Mission Specialist Barbara Morgan, facing forward at the entrance of the module. The mission payload also includes the third starboard truss segment (ITS S5), a control moment gyro and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. - In the Space Station Processing Facility, STS-118 crew members practice using equipment for the mission. At left, on the ladder, is Mission Specialist Scott Parazynski; on the right, looking up, is Mission Specialist Dafydd Williams (Canadian Space Agency). The STS-118 mission will be delivering and installing the third starboard truss segment, the ITS S5, to the International Space Station, and carry a SPACEHAB Single Cargo Module with supplies and equipment. Launch date is under review.

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew is welcomed back to Earth by NASA officials after completing mission STS-118. The crew members are (from front) Pilot Charlie Hobaugh, Commander Scott Kelly, and Mission Specialists Tracy Caldwell, Rick Mastracchio and Canadian astronaut Dave Williams. Williams is talking to Laurier Boisvert, president of the Canadian Space Agency. On the mission, the crew installed a new gyroscope, an external spare parts platform and another truss segment to the expanding station. Endeavour's main gear touched down at 12:32:16 p.m. EDT. Nose gear touchdown was at 12:32:29 p.m. and wheel stop was at 12:33:20 p.m. Endeavour landed on orbit 201. STS-118 was the 119th space shuttle flight, the 22nd flight to the station, the 20th flight for Endeavour and the second of four missions planned for 2007. This was the 65th landing of an orbiter at Kennedy. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- At the NASA television studio, the STS-118 crew members participate in a news conference. Seated from left are Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Tracy Caldwell, Rick Mastracchio, Dave Williams, Barbara R. Morgan and Alvin Drew. The crew has just returned from a 13-day mission to the International Space Station. On the mission, the crew installed a new gyroscope, an external spare parts platform and another truss segment to the expanding station. STS-118 was the 119th space shuttle flight, the 22nd flight to the station, the 20th flight for Endeavour and the second of four missions planned for 2007. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities at KSC, STS-118 crew members get a close look at equipment inside Endeavour's payload bay. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Dr. Dafydd Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities at KSC, STS-118 Mission Specialist Dr. Dafydd Williams (right) maneuvers the latch on the crew airlock module. The airlock is located in the middeck. The airlock and airlock hatches permit flight crew members to transfer from the middeck crew compartment into the payload bay for extravehicular activities in their space suits without depressurizing the orbiter crew cabin. The airlock is sized to accommodate two fully suited flight crew members simultaneously. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities at KSC, STS-118 Mission Specialist Dr. Dafydd Williams (right) maneuvers the latch on the crew airlock module. The airlock is located in the middeck. The airlock and airlock hatches permit flight crew members to transfer from the middeck crew compartment into the payload bay for extravehicular activities in their space suits without depressurizing the orbiter crew cabin. The airlock is sized to accommodate two fully suited flight crew members simultaneously. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, Fla. -- Practicing emergency egress from Launch Pad 39A, STS-118 crew members climb into a slidewire basket. They are taking part in terminal countdown demonstration test activities that included a simulated launch countdown. The crew comprises Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Dave Williams, Barbara R. Morgan, Rick Mastracchio, Tracy Caldwell and Alvin Drew. Williams represents the Canadian Space Agency. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. The STS-118 mission on Space Shuttle Endeavour is the 22nd flight to the International Space Station and will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, Fla. -- STS-118 crew members get a close look at the payloads installed in Space Shuttle Endeavour. Seen in the foreground are Mission Specialists Dave Williams (center), who represents the Canadian Space Agency, and Tracy Caldwell (right). In the background is Mission Specialist Rick Mastracchio. The STS-118 crew has been at Kennedy for terminal countdown demonstration test activities that also include M-113 training, emergency egress training at the pad and a simulated launch countdown. The mission is the 22nd flight to the International Space Station and Space Shuttle Endeavour will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, members of the STS-118 crew learn important information from technicians about the control moment gyro (CMG) in front of them that is part of the payload on their mission. Second from left is Mission Specialist Tracy Caldwell; at right are Mission Specialists Richard Mastracchio (pointing) and Clayton Anderson, who will be flying on STS-118 to join the Expedition 15 crew as flight engineer on the International Space Station. The CMG will replace a faulty one on the International Space Station. The payload also includes the SPACEHAB single cargo module, the third starboard truss segment (ITS S5) and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, Fla. -- STS-118 crew members get a close look at the payloads installed in Space Shuttle Endeavour. Seen in the foreground are Mission Specialists Dave Williams (center), who represents the Canadian Space Agency, and Tracy Caldwell (right). In the background is Mission Specialist Rick Mastracchio. The STS-118 crew has been at Kennedy for terminal countdown demonstration test activities that also include M-113 training, emergency egress training at the pad and a simulated launch countdown. The mission is the 22nd flight to the International Space Station and Space Shuttle Endeavour will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, members of the STS-118 crew learn important information from technicians about the control moment gyro (CMG) in front of them that is part of the payload on their mission. Second from left is Mission Specialist Tracy Caldwell; at center, behind the CMG, is Mission Specialist Richard Mastracchio; second from right is Mission Specialist Clayton Anderson, who will be flying on STS-118 to join the Expedition 15 crew as flight engineer on the International Space Station. The CMG will replace a faulty one on the International Space Station. The payload also includes the SPACEHAB single cargo module, the third starboard truss segment (ITS S5) and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, Fla. -- Practicing emergency egress from Launch Pad 39A, STS-118 crew members head for the slidewire basket area. They are taking part in terminal countdown demonstration test activities that included a simulated launch countdown. The crew comprises Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Dave Williams, Barbara R. Morgan, Rick Mastracchio, Tracy Caldwell and Alvin Drew. Williams represents the Canadian Space Agency. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. The STS-118 mission on Space Shuttle Endeavour is the 22nd flight to the International Space Station and will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, Fla. -- Practicing emergency egress from Launch Pad 39A, STS-118 crew members climb into a slidewire basket. They are taking part in terminal countdown demonstration test activities that included a simulated launch countdown. The crew comprises Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Dave Williams, Barbara R. Morgan, Rick Mastracchio, Tracy Caldwell and Alvin Drew. Williams represents the Canadian Space Agency. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. The STS-118 mission on Space Shuttle Endeavour is the 22nd flight to the International Space Station and will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, members of the STS-118 crew look at a mockup of the control moment gyro (CMG) and the insulating cover. The CMG is part of the payload on their mission. At the far left is Mission Specialist Tracy Caldwell; at right are Mission Specialists Clayton Anderson and Richard Mastracchio (holding the cover). Anderson will be flying on STS-118 to join the Expedition 15 crew as flight engineer on the International Space Station. The CMG will replace a faulty one on the International Space Station. The payload also includes the SPACEHAB single cargo module, the third starboard truss segment (ITS S5) and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, Fla. -- STS-118 crew members get a close look at the payloads installed in Space Shuttle Endeavour. Seen here are Pilot Charlie Hobaugh (left) and Mission Specialist Barbara R. Morgan, who joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. The STS-118 crew has been at Kennedy for terminal countdown demonstration test activities that also include M-113 training, emergency egress training at the pad and a simulated launch countdown. The mission is the 22nd flight to the International Space Station and Space Shuttle Endeavour will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- A reporter interviews STS-118 Mission Specialist Dave Williams during a special event at Walt Disney World in Orlando . The day's events honoring the STS-118 space shuttle crew recognized the inspirational achievement of teacher-turned-astronaut Barbara R. Morgan who helped dedicate a plaque outside the Mission: Space attraction, and included meeting with students and the media and parading down Main Street to the delight of the crowds. The other crew members attending were Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Tracy Caldwell, Rick Mastracchio and Alvin Drew. Mission STS-118 was the 119th shuttle program flight and the 22nd flight to the International Space Station. Space shuttle Endeavour launched from NASA's Kennedy Space Center on Aug. 8 and landed Aug. 21. The mission delivered the S5 truss, continuing the assembly of the space station. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, Fla. -- Practicing emergency egress from Launch Pad 39A, STS-118 crew members climb into a slidewire basket. They are taking part in terminal countdown demonstration test activities that included a simulated launch countdown. The crew comprises Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Dave Williams, Barbara R. Morgan, Rick Mastracchio, Tracy Caldwell and Alvin Drew. Williams represents the Canadian Space Agency. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. The STS-118 mission on Space Shuttle Endeavour is the 22nd flight to the International Space Station and will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

A reporter interviews STS-118 Mission Specialist Dave Williams during a special event at Walt Disney World in Orlando . The day's events honoring the STS-118 space shuttle crew recognized the inspirational achievement of teacher-turned-astronaut Barbara R. Morgan who helped dedicate a plaque outside the Mission: Space attraction, and included meeting with students and the media and parading down Main Street to the delight of the crowds. The other crew members attending were Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Tracy Caldwell, Rick Mastracchio and Alvin Drew. Mission STS-118 was the 119th shuttle program flight and the 22nd flight to the International Space Station. Space shuttle Endeavour launched from NASA's Kennedy Space Center on Aug. 8 and landed Aug. 21. The mission delivered the S5 truss, continuing the assembly of the space station

KENNEDY SPACE CENTER, Fla. -- Practicing emergency egress from Launch Pad 39A, STS-118 crew members head for the slidewire basket area. They are taking part in terminal countdown demonstration test activities that included a simulated launch countdown. The crew comprises Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Dave Williams, Barbara R. Morgan, Rick Mastracchio, Tracy Caldwell and Alvin Drew. Williams represents the Canadian Space Agency. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. The STS-118 mission on Space Shuttle Endeavour is the 22nd flight to the International Space Station and will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. NASA/George Shelton

KENNEDY SPACE CENTER, Fla. -- STS-118 crew members confer with a technician about the payloads installed in Space Shuttle Endeavour. Seen here are Mission Specialists Dave Williams (center), who represents the Canadian Space Agency, and Rick Mastracchio (right). The STS-118 crew has been at Kennedy for terminal countdown demonstration test activities that also include M-113 training, emergency egress training at the pad and a simulated launch countdown. The mission is the 22nd flight to the International Space Station and Space Shuttle Endeavour will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. - STS-116 Mission Specialist Christer Fuglesang (right) (European Space Agency) practices using a tool that is part of the equipment for the mission. He joined STS-118 crew members for the familiarization activities in the Space Station Processing Facility. The STS-116 mission will deliver the third port truss segment, the P5 Truss, to attach to the second port truss segment, the P3/P4 Truss. The STS-118 mission will be delivering and installing the third starboard truss segment, the ITS S5, to the International Space Station, and carry a SPACEHAB Single Cargo Module with supplies and equipment. Launch dates for both missions are under review.

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities in Orbiter Processing Facility bay 3 at KSC, STS-118 crew members get a close look at equipment they will use on their flight. Seen here at center are Mission Specialists Tracy Caldwell and Barbara Morgan. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

Enroute to the International Space Station (ISS), Space Shuttle Endeavor and its seven member STS-118 crew, blasted off from the launch pad at Kennedy Space Center on August 8, 2007. Construction resumed on the ISS as STS-118 mission specialists and the Expedition 15 crew completed installation of the third Starboard 5 (S-5) truss segment, removed a faulty Control Moment Gyroscope (CMG-3), installed a new CMG into the Z1 truss, relocated the S-band Antenna Sub-Assembly from the Port 6 (P6) to Port 1 (P1) truss, installed a new transponder on P1, retrieved the P6 transponder, and delivered roughly 5,000 pounds of equipment and supplies.

KENNEDY SPACE CENTER, FLA. -- In Orbiter Processing Facility bay 2, during crew equipment interface test activities, STS-118 crew members get a close look at the orbiter boom sensor system in Endeavour's payload bay. At center are Commander Scott Kelly and Mission Specialist Barbara Morgan. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

Enroute to the International Space Station (ISS), Space Shuttle Endeavor and its seven member STS-118 crew, blasted off from the launch pad at Kennedy Space Center on August 8, 2007. Construction resumed on the ISS as STS-118 mission specialists and the Expedition 15 crew completed installation of the third Starboard 5 (S-5) truss segment, removed a faulty Control Moment Gyroscope (CMG-3), installed a new CMG into the Z1 truss, relocated the S-band Antenna Sub-Assembly from the Port 6 (P6) to Port 1 (P1) truss, installed a new transponder on P1, retrieved the P6 transponder, and delivered roughly 5,000 pounds of equipment and supplies.

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities, members of the STS-118 crew address a piece of equipment with a worker in Orbiter Processing Facility bay 2. Mission Specialist Tracy Caldwell holds the package; next to her is Mission Specialist Barbara Morgan. Behind Caldwell is Pilot Charles Hobaugh. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities, members of the STS-118 crew look over the orbiter Endeavour in Orbiter Processing Facility bay 2. Seen here are Mission Specialists Barbara Morgan (standing), Richard Mastrocchio and Dr. Dafydd Williams (background) and Tracy Caldwell (foreground). The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities in Orbiter Processing Facility bay 3 at KSC, STS-118 crew members get a close look at equipment they will use on their flight. Seen here is Pilot Charles Hobaugh. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In Orbiter Processing Facility bay 2, members of the STS-118 crew look at the main engines on the orbiter Endeavour during crew equipment interface test activities. Seen here are (from left) Mission Specialists Tracy Caldwell, Barbara Morgan and (far right) Dr. Dafydd Williams. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities, members of the STS-118 crew look over the orbiter Endeavour in Orbiter Processing Facility bay 2. From left are Mission Specialist Dr. Dafydd Williams, Commander Scott Kelly, and Mission Specialists Barbara Morgan, Benjamin Drew and Tracy Caldwell. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In Endeavour's payload bay in Orbiter Processing Facility bay 2, STS-118 Mission Specialist Barbara Morgan gets some details about the orbiter boom sensor system in front of her. She and other crew members are at KSC for crew equipment interface test activities. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

Enroute to the International Space Station (ISS), Space Shuttle Endeavor and its seven member STS-118 crew, blasted off from the launch pad at Kennedy Space Center on August 8, 2007. Construction resumed on the ISS as STS-118 mission specialists and the Expedition 15 crew completed installation of the third Starboard 5 (S-5) truss segment, removed a faulty Control Moment Gyroscope (CMG-3), installed a new CMG into the Z1 truss, relocated the S-band Antenna Sub-Assembly from the Port 6 (P6) to Port 1 (P1) truss, installed a new transponder on P1, retrieved the P6 transponder, and delivered roughly 5,000 pounds of equipment and supplies.

These seven astronauts take a break from training to pose for the STS-118 crew portrait. Pictured from the left are astronauts Richard A. “Rick” Mastracchio, mission specialist; Barbara R. Morgan, mission specialist; Charles O. Hobaugh, pilot; Scott J. Kelly, commander; Tracy E. Caldwell, Canadian Space Agency's Dafydd R. “Dave” Williams, and Alvin Drew Jr., all mission specialists. The crew members are attired in training versions of their shuttle launch and entry suits. The main objective of the STS-118 mission was to install the fifth Starboard (S5) truss segment on the International Space Station (ISS).

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities, members of the STS-118 crew look over the orbiter Endeavour in Orbiter Processing Facility bay 2. At left is Mission Specialist Richard Mastracchio; in the center are Commander Scott Kelly and Mission Specialists Dr. Dafydd Williams and Tracy Caldwell. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities, members of the STS-118 crew look over the orbiter Endeavour in Orbiter Processing Facility bay 2. Seen here are (from left), Mission Specialists Tracy Caldwell, Barbara Morgan and Richard Mastrocchio. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- During crew equipment interface test activities in Orbiter Processing Facility bay 3 at KSC, STS-118 crew members get a close look at equipment they will use on their flight. Seen here at center are Mission Specialists Tracy Caldwell and Barbara Morgan. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. - Members of the STS-116 and STS-118 crews pause during their visit to KSC for a photo. From left are STS-118 Pilot Charles Hobaugh and Mission Specialist Dafydd Williams (Canadian Space Agency); astronaut Peggy Whitson; STS-116 Mission Specialist Christer Fugelsang (European Space Agency), holding the paper figure of “Flat Stanley,” an education tool; STS-118 Mission Specialists Barbara Morgan and Scott Parazynski; and STS-116 Mission Specialist Robert Curbeam. The crews are taking part in equipment familiarization in the Space Station Processing Facility. The STS-116 mission will deliver the third port truss segment, the P5 Truss, to attach to the second port truss segment, the P3/P4 Truss. The STS-118 mission will be delivering and installing the third starboard truss segment, the ITS S5, to the International Space Station, and carry a SPACEHAB Single Cargo Module with supplies and equipment. Launch dates for both missions are under review.

JSC2007-E-03712 (19 Jan. 2007) --- Educator astronaut Barbara R. Morgan speaks with students during Space Center Houston's "Meet an Astronaut Day" on Jan. 19. Morgan has been named as a crew member for the STS-118 mission, scheduled to launch in the summer of 2007.

JSC2007-E-03703 (19 Jan. 2007) --- Barbara R. Morgan, educator astronaut, is pictured during a demonstration at Space Center Houston. Morgan has been named as a crew member for the STS-118 mission, scheduled to launch in the summer of 2007.

JSC2007-E-03715 (19 Jan. 2007) --- Barbara R. Morgan, educator astronaut, is pictured with a number of students during a demonstration at Space Center Houston. Morgan has been named as a crew member for the STS-118 mission, scheduled to launch in the summer of 2007.

JSC2007-E-06385 (1 Feb. 2007) --- Astronaut Scott J. Kelly, STS-118 commander, prepares for a flight in a NASA T-38 trainer jet from Ellington Field near Johnson Space Center to Kennedy Space Center, Florida.

JSC2007-E-06395 (1 Feb. 2007) --- Astronaut Charles O. Hobaugh, STS-118 pilot, prepares for a flight in a NASA T-38 trainer jet from Ellington Field near Johnson Space Center to Kennedy Space Center, Florida.

JSC2007-E-06384 (1 Feb. 2007) --- STS-118 Commander Scott Kelly prepares for a flight to Kennedy Space Center in a T-38 trainer jet at Ellington Field's Hangar 276 near the Johnson Space Center. Photo credit: NASA

JSC2007-E-06387 (1 Feb. 2007) --- Astronaut Barbara R. Morgan, STS-118 mission specialist, prepares for a flight in a NASA T-38 trainer jet from Ellington Field near Johnson Space Center to Kennedy Space Center, Florida.

JSC2007-E-06400 (1 Feb. 2007) --- Astronaut Tracy E. Caldwell, STS-118 mission specialist, prepares for a flight in a NASA T-38 trainer jet from Ellington Field near Johnson Space Center to Kennedy Space Center, Florida.

KENNEDY SPACE CENTER, FLA. --The STS-118 crew members look over parts of the mission payload, the S5 integrated truss, in the Space Station Processing Facility during crew equipment interface test activities. Seen here are (standing) Commander Scott Kelly and Mission Specialist Tracy Caldwell, and (foreground) Mission Specialists Richard Mastracchio and Dr. Dafydd Williams. Other crew members are Pilot Charles Hobaugh and Mission Specialists Barbara Morgan and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. - In the Space Station Processing Facility, members of several Space Shuttle mission crews get a close look at the Video Stanchion Support Assembly (VSSA) that will fly on STS-114 (Logistics Flight 1). From left are STS-114 Mission Specialist Andrew Thomas, STS-118 Mission Specialist Scott Parazynski and STS-114 Mission Specialist Stephen Robinson. At right is astronaut Barry Wilmore. The crews are at KSC for equipment familiarization.

KENNEDY SPACE CENTER, FLA. -In the Space Station Processing Facility, members of several Space Shuttle mission crews get a close look at the Video Stanchion Support Assembly (VSSA) that will fly on STS-114 (Logistics Flight 1).. Manipulating the VSSA (in the center) is STS-116 Mission Specialist Christer Fuglesang (European Space Agency). At left is STS-118 Commander Scott Kelly; behind Fuglesang is STS-121 Mission Commander Steven Lindsey. The crews are at KSC for equipment familiarization.

KENNEDY SPACE CENTER, Fla. -- Practicing emergency egress from Launch Pad 39A, STS-118 Mission Specialists Tracy Caldwell (left) and Rick Mastracchio are seated in a slidewire basket in the foreground. Others in the background include Mission Specialist Barbara R. Morgan (center). Other crew members are Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Dave Williams and Alvin Drew. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. Williams represents the Canadian Space Agency. The STS-118 mission on Space Shuttle Endeavour is the 22nd flight to the International Space Station and will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, Fla. -- Practicing emergency egress from Launch Pad 39A, STS-118 Commander Scott Kelly (left) reaches for the pull lever of the slidewire basket. Behind him is Pilot Charlie Hobaugh. At upper left in another basket is Mission Specialist Rick Mastracchio. Other crew members are Mission Specialists Dave Williams, Barbara R. Morgan, Tracy Caldwell and Alvin Drew. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. Williams represents the Canadian Space Agency. The STS-118 mission on Space Shuttle Endeavour is the 22nd flight to the International Space Station and will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- Members of the STS-118 crew take part in a hardware review of the SPACEHAB module, part of the payload on their mission. Seen here inside the module are Mission Specialists Richard Mastracchio (left), Dafydd Williams (center, standing) and Barbara Morgan (lower right). Williams represents the Canadian Space Agency. The mission payload also includes the third starboard truss segment (ITS S5), a control moment gyro and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Members of the STS-118 crew take part in a hardware review of the SPACEHAB module, part of the payload on their mission. Looking inside one of the stowage compartments are Pilot Charles Hobaugh (holding a light) and Mission Specialists Dafydd Williams and Barbara Morgan. Williams represents the Canadian Space Agency. The mission payload also includes the third starboard truss segment (ITS S5), a control moment gyro and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Members of the STS-118 crew take part in a hardware review of the SPACEHAB module, part of the payload on their mission. Seen here inside the module are Mission Specialists Dafydd Williams (center) and Barbara Morgan. Williams represents the Canadian Space Agency. The mission payload also includes the third starboard truss segment (ITS S5), a control moment gyro and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, Fla. -- STS-118 Commander Scott Kelly stands inside an M-113 armored personnel carrier before his driving session as part of emergency exit training. He and other crew members are at Kennedy for the Terminal Countdown Demonstration Test (TCDT), a dress rehearsal for launch. TCDT activities include the M-113 training, payload familiarization, emergency egress training at the pad and a simulated launch countdown. The STS-118 payload aboard Space Shuttle Endeavour includes the S5 truss, a SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and is targeted for launch on Aug.7. NASA/George Shelton

KENNEDY SPACE CENTER, Fla. -- STS-118 Commander Scott Kelly practices driving an M-113 armored personnel carrier with fellow crew members Tracy Caldwell, Alvin Drew and Dave Williams, all mission specialists, as passengers. They are at Kennedy for the Terminal Countdown Demonstration Test (TCDT), a dress rehearsal for launch. TCDT activities include the M-113 training, payload familiarization, emergency egress training at the pad and a simulated launch countdown. The STS-118 payload aboard Space Shuttle Endeavour includes the S5 truss, a SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and is targeted for launch on Aug.7. NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, members of the STS-118 crew learn important information from technicians about the control moment gyro (CMG) in front of them that is part of the payload on their mission. At far left is Commander Scott Kelly; at center is Mission Specialist Tracy Caldwell; and at far right is Mission Specialist Richard Mastracchio. The CMG will replace a faulty one on the International Space Station. The payload also includes the SPACEHAB single cargo module, the third starboard truss segment (ITS S5) and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, members of the STS-118 crew look over the control moment gyro (CMG) that is part of the payload on their mission. At left is Commander Scott Kelly; at right is Mission Specialist Tracy Caldwell. The CMG will replace a faulty one on the International Space Station. The payload also includes the SPACEHAB single cargo module, the third starboard truss segment (ITS S5) and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, Fla. -- STS-118 Pilot Charlie Hobaugh stands inside an M-113 armored personnel carrier before his driving session as part of emergency exit training. He and other crew members are at Kennedy for the Terminal Countdown Demonstration Test (TCDT), a dress rehearsal for launch. TCDT activities include the M-113 training, payload familiarization, emergency egress training at the pad and a simulated launch countdown. The STS-118 payload aboard Space Shuttle Endeavour includes the S5 truss, a SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and is targeted for launch on Aug.7. NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- Members of the STS-118 crew take part in a hardware review of the SPACEHAB module, part of the payload on their mission. Seen here (in uniforms) from left are Mission Specialists Dafydd Williams and Barbara Morgan and Pilot Charles Hobaugh. Williams represents the Canadian Space Agency. The mission payload also includes the third starboard truss segment (ITS S5), a control moment gyro and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, Fla. -- STS-118 Mission Specialist Dave Williams gets help with his boot during fit testing of his launch and entry suit. He and other crew members are at Kennedy for the Terminal Countdown Demonstration Test (TCDT) activities, a dress rehearsal for launch. TCDT activities include the M-113 training, payload familiarization, emergency egress training at the pad and a simulated launch countdown. The STS-118 payload aboard Space Shuttle Endeavour includes the S5 truss, a SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and is targeted for launch on Aug. 7. NASA/George Shelton

KENNEDY SPACE CENTER, Fla. -- STS-118 Mission Specialist Alvin Drew stands inside an M-113 armored personnel carrier before his driving session, as part of emergency exit training. He and other crew members are at Kennedy for the Terminal Countdown Demonstration Test (TCDT), a dress rehearsal for launch. TCDT activities include the M-113 training, payload familiarization, emergency egress training at the pad and a simulated launch countdown. The STS-118 payload aboard Space Shuttle Endeavour includes the S5 truss, a SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and is targeted for launch on Aug.7. NASA/George Shelton

KENNEDY SPACE CENTER, Fla. -- STS-118 Pilot Charlie Hobaugh practices driving an M-113 armored personnel carrier with passenger (at left) Tracy Caldwell, mission specialist. They and other crew members are at Kennedy for the Terminal Countdown Demonstration Test (TCDT), a dress rehearsal for launch. TCDT activities include the M-113 training, payload familiarization, emergency egress training at the pad and a simulated launch countdown. The STS-118 payload aboard Space Shuttle Endeavour includes the S5 truss, a SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and is targeted for launch on Aug.7. NASA/George Shelton

KENNEDY SPACE CENTER, Fla. -- STS-118 Mission Specialist Rick Mastracchio tests the fit of his helmet as well as the launch and entry suit. He and other crew members are at Kennedy for the Terminal Countdown Demonstration Test (TCDT) activities, a dress rehearsal for launch. TCDT activities include the M-113 training, payload familiarization, emergency egress training at the pad and a simulated launch countdown. The STS-118 payload aboard Space Shuttle Endeavour includes the S5 truss, a SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and is targeted for launch on Aug. 7. NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- Members of the STS-118 crew take part in a hardware review of the SPACEHAB module, part of the payload on their mission. Seen here inside the module are Mission Specialists Dafydd Williams (center) and Barbara Morgan. Williams represents the Canadian Space Agency. The mission payload also includes the third starboard truss segment (ITS S5), a control moment gyro and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, members of the STS-118 crew learn important information from technicians about the control moment gyro (CMG) in front of them that is part of the payload on their mission. At left is Commander Scott Kelly; at right is Mission Specialist Tracy Caldwell. The CMG will replace a faulty one on the International Space Station. The payload also includes the SPACEHAB single cargo module, the third starboard truss segment (ITS S5) and the external stowage platform 3 (ESP3). STS-118 is targeted to launch June 28 from Launch Pad 39A. Photo credit: NASA/Kim Shiflett

President George W. Bush and Mrs. Bush participate in a photo opportunity with crew members of the space shuttle Discovery (STS–116), space shuttle Atlantis (STS-117), space shuttle Endeavour (STS-118), and International Space Station Expeditions 14 and 15 at the White House, November 14, 2007. Photo Credit: "NASA/Bill Ingalls"

KENNEDY SPACE CENTER, FLA. -- President George Bush and Mrs. Bush participate in a photo opportunity with crew members of space shuttle Discovery (STS-116), space shuttle Atlantis (STS-117), space shuttle Endeavour (STS-118), and International Space Station Expeditions 14 and 15 at the White House Wednesday, Nov. 14, 2007. Photo credit: NASA/Bill Ingalls

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew members look over parts of the mission payload, the control moment gyroscope, at SPACEHAB during crew equipment interface test activities. Seen here are Mission Specialist Barbara Morgan and Pilot Charles Hobaugh. The crew comprises Commander Scott Kelly, Hobaugh, and Mission Specialists Dr. Dafydd Williams, Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

NASA's Kennedy Space Center Education Specialists Linda Scauzillo and Christopher Blair take part in a special education session with local students at Epcot's Base21 Siemens VIP Center. The event was part of the day's activities honoring the space shuttle Endeavour crew of mission STS-118. The crew met with the media and paraded down Main Street. The event also honored teacher-turned-astronaut Barbara R. Morgan, who dedicated a plaque outside the Mission: Space attraction. The other crew members attending were Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Tracy Caldwell, Dave Williams, Rick Mastracchio and Alvin Drew. Mission STS-118 was the 119th shuttle program flight and the 22nd flight to the International Space Station. Space shuttle Endeavour launched from NASA's Kennedy Space Center on Aug. 8 and landed Aug. 21. The mission delivered the S5 truss, continuing the assembly of the space station.

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew members look over parts of the mission payload, the control moment gyroscope, at SPACEHAB during crew equipment interface test activities. Seen here are Mission Specialists Dr. Dafydd Williams (left) and Richard Mastracchio. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew members look over parts of the mission payload, the S5 integrated truss, in the Space Station Processing Facility during crew equipment interface test activities. Seen here is Mission Specialist Tracy Caldwell, who will be making her first space shuttle flight. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Dr. Dafydd Williams, Barbara Morgan, Richard Mastracchio, Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew members look over parts of the mission payload, the S5 integrated truss, in the Space Station Processing Facility during crew equipment interface test activities. Seen here are Mission Specialists Tracy Caldwell and Dr. Dafydd Williams. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Williams, Barbara Morgan, Richard Mastracchio, Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew members look over parts of the mission payload, the control moment gyroscope, at SPACEHAB during crew equipment interface test activities. Seen here are Mission Specialist Barbara Morgan (left) and Pilot Charles Hobaugh (center). The crew comprises Commander Scott Kelly, Hobaugh, and Mission Specialists Dr. Dafydd Williams, Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, Fla. -- On an upper level of the Pad 39A fixed service structure, the STS-118 crew get instructions from a trainer about using the emergency egress system. The crew members seen here are, from left, Commander Scott Kelly and Mission Specialists Barbara R. Morgan, Tracy Caldwell and Dave Williams. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. Williams represents the Canadian Space Agency. The crew is at Kennedy for training activities in the terminal countdown demonstration test, or TCDT. TCDT activities include M-113 training, payload familiarization, the emergency egress training at the pad and a simulated launch countdown. The mission is the 22nd flight to the International Space Station and Space Shuttle Endeavour will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew members look over parts of the mission payload, the S5 integrated truss, in the Space Station Processing Facility during crew equipment interface test activities. Seen here is Mission Specialist Richard Mastracchio. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Dr. Dafydd Williams, Barbara Morgan, Mastracchio, Tracy Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. --The STS-118 crew members look over parts of the mission payload, the S5 integrated truss, in the Space Station Processing Facility during crew equipment interface test activities. Seen here are Mission Specialists Dr. Dafydd Williams and Tracy Caldwell. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Williams, Barbara Morgan, Richard Mastracchio, Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew members look over parts of the mission payload, the S5 integrated truss, in the Space Station Processing Facility during crew equipment interface test activities. Seen here is Mission Specialist Benjamin Drew, who will be making his first space shuttle flight. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Dr. Dafydd Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew members look over parts of the mission payload, the S5 integrated truss, in the Space Station Processing Facility during crew equipment interface test activities. Seen here are Mission Specialists Richard Mastracchio (left) and Tracy Caldwell. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Dr. Dafydd Williams, Barbara Morgan, Mastracchio, Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew members look over parts of the mission payload, the S5 integrated truss, in the Space Station Processing Facility during crew equipment interface test activities. Seen here are Mission Specialists Tracy Caldwell, Dr. Dafydd Williams and Richard Mastracchio. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Williams, Barbara Morgan, Mastracchio, Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- At the NASA television studio, the STS-118 crew members answer questions from the media during a news conference. Seated from left are Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Tracy Caldwell, Rick Mastracchio, Dave Williams, Barbara R. Morgan and Alvin Drew. The crew has just returned from a 13-day mission to the International Space Station. On the mission, the crew installed a new gyroscope, an external spare parts platform and another truss segment to the expanding station. STS-118 was the 119th space shuttle flight, the 22nd flight to the station, the 20th flight for Endeavour and the second of four missions planned for 2007. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. --The STS-118 crew members look over parts of the mission payload, the S5 integrated truss, in the Space Station Processing Facility during crew equipment interface test activities. Seen here is Mission Specialist Dr. Dafydd Williams, getting hands-on experience. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The STS-118 crew members look over parts of the mission payload, the control moment gyroscope, at SPACEHAB during crew equipment interface test activities. Seen here are Mission Specialists Dr. Dafydd Williams and Tracy Caldwell. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Williams, Barbara Morgan, Richard Mastracchio, Caldwell and Benjamin Drew. Williams is with the Canadian Space Agency. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, and a SPACEHAB Single Cargo module with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for August. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In Orbiter Processing Facility bay 2 at NASA's Kennedy Space Center, technicians control the descent of the crew airlock module into Endeavour's payload bay, where it will be installed. The airlock is located in the middeck. The airlock and airlock hatches permit flight crew members to transfer from the middeck crew compartment into the payload bay for extravehicular activities in their space suits without depressurizing the orbiter crew cabin. The airlock is sized to accommodate two fully suited flight crew members simultaneously. Endeavour is targeted for flight on Aug. 9 on mission STS-118 to the International Space Station. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- In Orbiter Processing Facility bay 2 at NASA's Kennedy Space Center, the crew airlock module is suspended above Endeavour's payload bay. The module will be lowered into the payload bay and installed. The airlock is located in the middeck. The airlock and airlock hatches permit flight crew members to transfer from the middeck crew compartment into the payload bay for extravehicular activities in their space suits without depressurizing the orbiter crew cabin. The airlock is sized to accommodate two fully suited flight crew members simultaneously. Endeavour is targeted for flight on Aug. 9 on mission STS-118 to the International Space Station. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- In Orbiter Processing Facility bay 2 at NASA's Kennedy Space Center, an overhead crane moves the crew airlock module toward Endeavour. It will be installed in Endeavour's payload bay. The airlock is located in the middeck. The airlock and airlock hatches permit flight crew members to transfer from the middeck crew compartment into the payload bay for extravehicular activities in their space suits without depressurizing the orbiter crew cabin. The airlock is sized to accommodate two fully suited flight crew members simultaneously. Endeavour is targeted for flight on Aug. 9 on mission STS-118 to the International Space Station. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- In Orbiter Processing Facility bay 2 at NASA's Kennedy Space Center, technicians direct the placement of the crew airlock module into Endeavour's payload bay, where it will be installed. The airlock is located in the middeck. The airlock and airlock hatches permit flight crew members to transfer from the middeck crew compartment into the payload bay for extravehicular activities in their space suits without depressurizing the orbiter crew cabin. The airlock is sized to accommodate two fully suited flight crew members simultaneously. Endeavour is targeted for flight on Aug. 9 on mission STS-118 to the International Space Station. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- In Orbiter Processing Facility bay 2 at NASA's Kennedy Space Center, an overhead crane lifts the crew airlock module off its stand. The airlock is being moved to install it in Endeavour's payload bay. The airlock is located in the middeck. The airlock and airlock hatches permit flight crew members to transfer from the middeck crew compartment into the payload bay for extravehicular activities in their space suits without depressurizing the orbiter crew cabin. The airlock is sized to accommodate two fully suited flight crew members simultaneously. Endeavour is targeted for flight on Aug. 9 on mission STS-118 to the International Space Station. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- In Orbiter Processing Facility bay 2 at NASA's Kennedy Space Center, the crew airlock module is lowered into place in Endeavour's payload bay, where it will be installed. The airlock is located in the middeck. The airlock and airlock hatches permit flight crew members to transfer from the middeck crew compartment into the payload bay for extravehicular activities in their space suits without depressurizing the orbiter crew cabin. The airlock is sized to accommodate two fully suited flight crew members simultaneously. Endeavour is targeted for flight on Aug. 9 on mission STS-118 to the International Space Station. Photo credit: NASA/Jack Pfaller