Expedition 43 backup crew member NASA Astronaut Jeff Williams, reflected in mirror, Russian Cosmonauts Mikhail Kornienko, on elliptical, Gennady Padalka of the Russian Federal Space Agency (Roscosmos), and NASA Astronaut Scott Kelly, right, are seen exercising during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Padalka, Kornienko, and Kelly are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly, center, and Expedition 43 backup crew member NASA Astronaut Jeff Williams talk as Kelly’s girlfriend, Amiko Kauderer, looks on at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia, Saturday, March 14, 2015. Kelly and fellow Expedition 43 crew members, Russian Cosmonauts Mikhail Kornienko and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) departed later in the morning for Baikonur, Kazakhstan. The trio is preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 backup crew members: Jeff Williams of NASA, left, Sergei Volkov, Alexey Ovchinin, of the Russian Federal Space Agency (Roscosmos), and prime crew members: NASA Astronaut Scott Kelly, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of Roscosmos attend the ISS Russian Segment Safety briefing, Thursday, March 19, 2015 at Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 prime and backup crew members: Russian Cosmonauts Mikhail Kornienko, left, Gennady Padalka, of the Russian Federal Space Agency (Roscosmos), NASA Astronauts Scott Kelly, and Jeff Williams, andRussian Cosmonauts, Alexei Ovchinin, and Sergei Volkov of Roscosmos participate in the traditional flag raising ceremony at the Cosmonaut Hotel, Monday, March 16, 2015 in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 prime and backup crew members: Russian Cosmonauts Mikhail Kornienko, left, Gennady Padalka, of the Russian Federal Space Agency (Roscosmos), NASA Astronauts Scott Kelly, and Jeff Williams, andRussian Cosmonauts, Alexei Ovchinin, and Sergei Volkov of Roscosmos participate in the traditional flag raising ceremony at the Cosmonaut Hotel, Monday, March 16, 2015 in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 prime crew: NASA Flight Engineer Scott Kelly, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), along with their backup crew: Jeff Williams of NASA, Russian Cosmonauts Alexei Ovchinin, and Sergei Volkov of Roscosmos attend a traditional flag raising ceremony at the Cosmonaut Hotel, Monday, March 16, 2015 in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 backup crew member NASA Astronaut Jeff Williams, left, and NASA Astronaut Scott Kelly talk while Kelly’s fellow crew members, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) have their Russian sokol suits pressure checked ahead of their launch onboard the Soyuz TMA-16M spacecraft to the International Space Station Friday, March 27, 2015 in Baikonor, Kazakhstan. Kelly, Padalka, and Kornienko launched to the ISS from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 43 NASA Astronaut Scott Kelly, left, Russian Cosmonauts Gennady Padalka, center, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) and backup crew members NASA Astronaut Jeff Williams, Alexey Ovchinin, and Sergei Volkov of Roscosmos pose for a group photo near a model of the Soyuz rocket during media day, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 prime crew: from left, NASA Flight Engineer Scott Kelly, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), along with their backup crew: Jeff Williams of NASA, Russian Cosmonauts Alexei Ovchinin, and Sergei Volkov of Roscosmos attend a traditional flag raising ceremony at the Cosmonaut Hotel, Monday, March 16, 2015 in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

William Kelly, PhD, PE, Manager, Public Affairs, American Society for Engineering Education speaks at the NASA Education Stakeholders’ Summit One Stop Shopping Initiative (OSSI), Monday, Sep. 13, 2010, at the Westfields Marriott Conference Center in Chantilly, VA. Seated are NASA Administrator Charles Bolden, left, and NASA Acting Associate Administrator for Education, James Stofan. (Photo Credit: NASA/Carla Cioffi)

Expedition 43 backup crew members: Jeff Williams of NASA, left, Alexei Ovchinin and Sergei Volkov of of the Russian Federal Space Agency (Roscosmos), pose for a photograph with Expedition 43 prime crew members: NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of Roscosmos, along with loved ones prior to departing the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia, for Baikonur, Kazakhstan, Saturday, March 14, 2015. The Expedition 43 crew is preparing for launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 backup crew members: Jeff Williams of NASA, left, Alexei Ovchinin and Sergei Volkov of of the Russian Federal Space Agency (Roscosmos), pose for a photograph with Expedition 43 prime crew members: NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of Roscosmos prior to departing the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia, for Baikonur, Kazakhstan, Saturday, March 14, 2015. The Expedition 43 crew is preparing for their launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 prime crew members: NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), and backup crew members Sergei Volkov, and Alexey Ovchinin and of Roscosmos, and NASA Astronaut Jeff Williams walk along the Avenue of the Cosmonauts where two long rows of trees are all marked with the name and year of the crew member who planted them starting from Yuri Gagarin's tree, Saturday, March 21, 2015, Baikonur, Kazakhstan. Expedition 43 NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 prime crew members: NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), and backup crew members Sergei Volkov, and Alexey Ovchinin and of Roscosmos, and NASA Astronaut Jeff Williams walk along the Avenue of the Cosmonauts where two long rows of trees are all marked with the name and year of the crew member who planted them starting from Yuri Gagarin's tree, Saturday, March 21, 2015, Baikonur, Kazakhstan. Expedition 43 NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 prime and backup crews pose for a photograph together in front of St. Basil's Cathedral in Moscow as part of traditional pre-launch ceremonies, from left, Expedition 43 backup crew members; NASA Astronaut Jeff Williams, Russian cosmonaut Sergei Volkov of the Russian Federal Space Agency (Roscosmos), Russian cosmonaut Alexei Ovchinin of Roscosmos, Expedition 43 prime crew members; NASA Astronaut Scott Kelly, Russian cosmonaut Gennady Padalka of Roscosmos, and Russian cosmonaut Mikhail Kornienko of Roscosmos, Friday, March 6, 2015. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 prime and backup crews are seen in quarantine behind glass, from left, Expedition 43 prime crew members; NASA Astronaut Scott Kelly, Russian cosmonauts Gennady Padalka, and Mikhail Kornienko of Roscosmos, Expedition 43 backup crew members; NASA Astronaut Jeff Williams, Russian cosmonauts Alexei Ovchinin, and Sergei Volkov of Roscosmos during the State Commission meeting to approve the Soyuz launch to the International Space Station, Thursday, March 26, 2015, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Kornienko, and Padalka launched to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit (NASA/Bill Ingalls)

Expedition 43 prime and backup crews are seen in quarantine behind glass during a crew press conference, from left, Expedition 43 prime crew members; NASA Astronaut Scott Kelly, Russian cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), Expedition 43 backup crew members; NASA Astronaut Jeff Williams, Russian cosmonauts Alexei Ovchinin, and Sergei Volkov Thursday, March 26, 2015, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Kornienko, and Padalka launched to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit (NASA/Bill Ingalls)

Expedition 43 prime and backup crews are seen in quarantine behind glass, from left, Expedition 43 prime crew members; NASA Astronaut Scott Kelly, Russian cosmonauts Gennady Padalka, and Mikhail Kornienko of Roscosmos, Expedition 43 backup crew members; NASA Astronaut Jeff Williams, Russian cosmonauts Alexei Ovchinin, and Sergei Volkov of Roscosmos during the State Commission meeting to approve the Soyuz launch to the International Space Station, Thursday, March 26, 2015, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Kornienko, and Padalka launched to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit (NASA/Bill Ingalls)

Expedition 43 prime and backup crews are seen in quarantine behind glass, from left, Expedition 43 prime crew members; NASA Astronaut Scott Kelly, Russian cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), Expedition 43 backup crew members; NASA Astronaut Jeff Williams, Russian cosmonauts Alexei Ovchinin, and Sergei Volkov during a crew press conference, Thursday, March 26, 2015, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Kornienko, and Padalka launched to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit (NASA/Bill Ingalls)

Expedition 43 prime crew: NASA Astronaut Scott Kelly, seated left, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), backup crew members: NASA Atronaut Jeff Williams, Alexey Ovchinin, and Sergei Volkov of Roscosmos, seated right, talk to space officials prior to doing their final check of the Soyuz TMA-16M spacecraft, Monday, March 23, 2015 at the Baikonur Cosmodrome in Kazakhstan. Kelly, Kornienko, and Padalka are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Charles Bolden, far right, gives keynote remarks at the NASA Education Stakeholders’ Summit One Stop Shopping Initiative (OSSI), Monday, Sep. 13, 2010, at the Westfields Marriott Conference Center in Chantilly, VA. Administrator Bolden is joined on the panel from left to right by Leland Melvin, Education Design Team Co-Chair and NASA Astronaut; William Kelly, Manager, Public Affairs, American Society for Engineering Education; Michael Lach, Special Assistant for STEM Education, U.S. Department of Education; Cora Marrett, Acting Director, National Science Foundation; and James Stofan, NASA Acting Associate Administrator for Education. (Photo Credit: NASA/Carla Cioffi)

NASA Administrator Charles Bolden, far right, gives keynote remarks at the NASA Education Stakeholders’ Summit One Stop Shopping Initiative (OSSI), Monday, Sep. 13, 2010, at the Westfields Marriott Conference Center in Chantilly, VA. Administrator Bolden is joined on the panel from left to right by Leland Melvin, Education Design Team Co-Chair and NASA Astronaut; William Kelly, Manager, Public Affairs, American Society for Engineering Education; Michael Lach, Special Assistant for STEM Education, U.S. Department of Education; Cora Marrett, Acting Director, National Science Foundation; and James Stofan, NASA Acting Associate Administrator for Education. (Photo Credit: NASA/Carla Cioffi)

JSC2015E032664 (02/06/2015) --- Official crew photograph of NASA astronaut Jeff Williams (NASA), Flight Engineer with the International Space Station's Expedition 47. Williams is also the backup for NASA's Scott Kelly who will remain on board the International Space Station for a full year. Credit: (Roscosmos/GCTC)

KENNEDY SPACE CENTER, FLA. -- STS-118 Commander Scott Kelly, seen here in the Space Station Processing Facility, is at KSC to take part in crew equipment interface test activities. The crew comprises Kelly, Pilot Charles Hobaugh, and Mission Specialists Dr. Dafydd 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

Expedition 43 backup crew member NASA Astronaut Jeff Williams enters the Soyuz TMA-16M spacecraft during a final check, Monday, March 23, 2015 at the Baikonur Cosmodrome in Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

STS102-E-5223 (16 March 2001) --- Cameras are plentiful in this digital still camera's image of astronauts and cosmonauts on the International Space Station (ISS). From the left are cosmonauts Sergei K. Krikalev and Yuri P. Gidzenko of Rosaviakosmos; along with astronauts William M. (Bill) Shepherd, James S. Voss, Susan J. Helms (background) and James. M. Kelly. Shepherd, Gidzenko and Krikalev have been aboard the orbital outpost since early November 2000 and are just days away from return to Earth. Helms and Voss are about to begin a lengthy stay aboard the station as flight engineers. Kelly is pilot for the STS-102 crew.

Expedition 43 backup crew members Jeff Williams of NASA, left, Sergei Volkov, center, and Alexey Ovchinin, of the Russian Federal Space Agency (Roscosmos) depart the Cosmonaut Hotel after morning classes, Thursday, March 19, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 prime crew, left, NASA Astronaut Scott Kelly, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), and Gagarin Cosmonaut Training Center (GCTC) Flight Surgeon Alexey Grishin, head of table, Expedition 43 back up crew members, Sergei Volkov, and Alexey Ovchinin, Roscosmos, and Jeff Williams of NASA enjoy lunch at the Zvjozdnyj Hotel, Thursday, March 19, 2015 in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly, left, along with fellow prime crew members: Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) and backup crew members Jeff Williams of NASA, Alexey Ovchinin, and Sergei Volkov of Roscosmos attend the ISS Russian Segment Safety briefing, Thursday, March 19, 2015 at Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Endeavour's payload bay is open for payload configuration work in Orbiter Processing Facility bay 2. The orbiter is the vehicle designated for mission STS-118, scheduled to launch in late June. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises six astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio and Tracy Caldwell. Williams represents the Canadian Space Agency.

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, Endeavour's payload bay doors are being closed. The payload will be installed on the launch pad after rollout. The orbiter is designated for mission STS-118, targeted for launch on Aug. 9. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises seven astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew. Williams represents the Canadian Space Agency. Photo credit: NASA/Cory Huston

KENNEDY SPACE CENTER, FLA. - The STS-118 crew look over parts of the mission payload in the Space Station Processing Facility. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Scott Parazynski, Dafydd Williams, Barbara Morgan and Lisa Nowak. Williams is with the Canadian Space Agency. Morgan was selected by NASA in January 1998 as the first Educator Astronaut. The 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 Columbia is scheduled for Nov. 13, 2003.

KENNEDY SPACE CENTER, FLA. -- Endeavour's payload bay is open for payload configuration work in Orbiter Processing Facility bay 2. The orbiter is the vehicle designated for mission STS-118, scheduled to launch in late June. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises six astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio and Tracy Caldwell. Williams represents the Canadian Space Agency. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- Endeavour's payload bay is open for payload configuration work in Orbiter Processing Facility bay 2. The orbiter is the vehicle designated for mission STS-118, scheduled to launch in late June. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises six astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio and Tracy Caldwell. Williams represents the Canadian Space Agency. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. - The STS-118 crew look over parts of the mission payload in the Space Station Processing Facility. The crew comprises Commander Scott Kelly, Pilot Charles Hobaugh, and Mission Specialists Scott Parazynski, Dafydd Williams, Barbara Morgan and Lisa Nowak. Williams is with the Canadian Space Agency. Morgan was selected by NASA in January 1998 as the first Educator Astronaut. The 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 Columbia is scheduled for Nov. 13, 2003.

Endeavour's payload bay is open for payload configuration work in Orbiter Processing Facility bay 2. The orbiter is the vehicle designated for mission STS-118, scheduled to launch in late June. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises six astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio and Tracy Caldwell. Williams represents the Canadian Space Agency.

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, Endeavour's payload bay doors are ready to be closed. The payload will be installed on the launch pad after rollout. The orbiter is designated for mission STS-118, targeted for launch on Aug. 9. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises seven astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew. Williams represents the Canadian Space Agency. Photo credit: NASA/Cory Huston

Endeavour's payload bay is open for payload configuration work in Orbiter Processing Facility bay 2. The orbiter is the vehicle designated for mission STS-118, scheduled to launch in late June. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises six astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio and Tracy Caldwell. Williams represents the Canadian Space Agency.

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, Endeavour's payload bay doors are closed. The payload will be installed on the launch pad after rollout. The orbiter is designated for mission STS-118, targeted for launch on Aug. 9. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises seven astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew. Williams represents the Canadian Space Agency. Photo credit: NASA/Cory Huston

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 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 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 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. --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

JSC2001-E-08334 (22 March 2001) --- Astronaut William M. (Bill) Shepherd, Expedition One mission commander, speaks to a crowd of greeters during a crew return ceremony in Ellington Field's Hangar 990. Pictured in the background on the dais are astronauts James M. Kelly (left), STS-102 pilot, and James D. Wetherbee, commander.

NASA Kennedy Space Center workers display their U.S. Patent plaques during a ceremony at the 2017 Innovation Expo at the center. From left, are Luke Robertson, Trent Smith, Kelly Jones-McDowall, event co-chairperson, Martha Williams and Dr. James Fesmire. The purpose of the annual two-day expo is to help foster innovation and creativity among the Kennedy workforce. The event included several keynote speakers, training opportunities, an innovation showcase and the KSC Kickstart competition.

jsc2018e076665 (Aug. 23, 2018) --- Vice President Mike Pence and NASA Administrator Jim Bridenstine visit the Sonny Carter Training Center (Neutral Buoyancy Lab) at NASA’s Johnson Space Center on Aug. 23, 2018. Pence and Bridenstine spoke with astronaut Suni Williams, and astronaut candidates Jonny Kim, Warren "Woody" Hoburg and Loral O’Hara poolside. While in the Test Control Room, they joined Flight Operations Director Brian Kelly and talked with astronauts Victor Glover and Nicole Mann as they practiced spacewalk tasks underwater.

JSC2007-E-44409 (22 Aug. 2007) --- The STS-118 crewmembers and Johnson Space Center's (JSC) director Michael L. Coats (left) are photographed during the STS-118 crew return ceremony on Wednesday, Aug. 22 at Ellington Field's Hangar 990 near JSC. From second left are astronauts Scott Kelly and Charlie Hobaugh, commander and pilot respectively; Tracy Caldwell, Rick Mastracchio, Canadian Space Agency's Dave Williams, Barbara R. Morgan and Alvin Drew, all mission specialists.

jsc2018e076666 (Aug. 23, 2018) --- Vice President Mike Pence and NASA Administrator Jim Bridenstine visit the Sonny Carter Training Center (Neutral Buoyancy Lab) at NASA’s Johnson Space Center on Aug. 23, 2018. Pence and Bridenstine spoke with astronaut Suni Williams, and astronaut candidates Jonny Kim, Warren "Woody" Hoburg and Loral O’Hara poolside. While in the Test Control Room, they joined Flight Operations Director Brian Kelly and talked with astronauts Victor Glover and Nicole Mann as they practiced spacewalk tasks underwater.

jsc2018e076664 (Aug. 23, 2018) --- Vice President Mike Pence and NASA Administrator Jim Bridenstine visit the Sonny Carter Training Center (Neutral Buoyancy Lab) at NASA’s Johnson Space Center on Aug. 23, 2018. Pence and Bridenstine spoke with astronaut Suni Williams, and astronaut candidates Jonny Kim, Warren "Woody" Hoburg and Loral O’Hara poolside. While in the Test Control Room, they joined Flight Operations Director Brian Kelly and talked with astronauts Victor Glover and Nicole Mann as they practiced spacewalk tasks underwater.

S118-E-06105 (10 Aug. 2007) --- A shuttle crewmember took a picture of the reunion of two commanders soon after hatch opening on the International Space Station as the orbital outpost's population immediately expanded from three to ten. In the foreground are astronaut Scott Kelly, STS-118 commander, and cosmonaut Fyodor Yurchikhin, Expedition 15 commander representing Russia's Federal Space Agency. Looking in the background are astronauts Dave Williams (left), representing the Canadian Space Agency, and Alvin Drew, both STS-118 mission specialists.

STS118-S-002 (May 2007) --- 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 crewmembers are attired in training versions of their shuttle launch and entry suits.

Expedition 43 backup crew members Jeff Williams of NASA, left, Alexey Ovchinin, center, and Sergei Volkov of Russia's Federal Space Agency (Roscosmos) take a moment during their Soyuz TMA-16M spacecraft fit check to pose for a photograph, Sunday, March 15, 2015 at the Baikonur Cosmodrome in Kazakhstan. The prime crew members Russian Cosmonauts Mikhail Kornienko, Gennady Padalka of the Russian Federal Space Agency (Roscosmos), and NASA Astronaut Scott Kelly are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 backup crew member Jeff Williams of NASA is seen inside the Soyuz TMA-16M spacecraft during the fit check with fellow backup crew members Russian Cosmonauts Alexey Ovchinin, and Sergei Volkov of Russia's Federal Space Agency (Roscosmos), Sunday, March 15, 2015 at the Baikonur Cosmodrome in Kazakhstan. The prime crew members Russian Cosmonauts Mikhail Kornienko, Gennady Padalka of the Russian Federal Space Agency (Roscosmos), and NASA Astronaut Scott Kelly are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 backup crew members Jeff Williams of NASA, left, Alexey Ovchinin, center, and Sergei Volkov of Russia's Federal Space Agency (Roscosmos) take a moment during the Soyuz TMA-16M spacecraft fit check to pose for a photograph, Sunday, March 15, 2015 at the Baikonur Cosmodrome in Kazakhstan. The prime crew members Russian Cosmonauts Mikhail Kornienko, Gennady Padalka of the Russian Federal Space Agency (Roscosmos), and NASA Astronaut Scott Kelly are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 backup crew members Sergei Volkov, left, and Alexey Ovchinin and of the Russian Federal Space Agency (Roscosmos), center, and NASA Astronaut Jeff Williams attend a training briefing, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 43 prime crew members: NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 backup crew members Jeff Williams of NASA, left, Alexey Ovchinin, center, and Sergei Volkov of Russia's Federal Space Agency (Roscosmos) take a moment during their Soyuz TMA-16M spacecraft fit check to pose for a photograph, Sunday, March 15, 2015 at the Baikonur Cosmodrome in Kazakhstan. The prime crew members Russian Cosmonauts Mikhail Kornienko, Gennady Padalka of the Russian Federal Space Agency (Roscosmos), and NASA Astronaut Scott Kelly are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 backup crew members: Russian Cosmonauts Sergei Volkov, left, and Alexey Ovchinin of the Russian Federal Space Agency (Roscosmos), and NASA Astronaut Jeff Williams, right, talk during their final check of the Soyuz TMA-16M spacecraft, Monday, March 23, 2015 at the Baikonur Cosmodrome in Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 backup crew members Jeff Williams of NASA, left, and Alexey Ovchinin of Russia's Federal Space Agency (Roscosmos) take a moment during their Soyuz TMA-16M spacecraft fit check to pose for a photograph while holding their pressurized Russian Sokol suits, including the suit of their fellow backup crew member Sergei Volkov, Sunday, March 15, 2015 at the Baikonur Cosmodrome in Kazakhstan. The prime crew members Russian Cosmonauts Mikhail Kornienko, Gennady Padalka of the Russian Federal Space Agency (Roscosmos), and NASA Astronaut Scott Kelly are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 backup crew members Sergei Volkov, left, and Alexey Ovchinin and of the Russian Federal Space Agency (Roscosmos), center, and NASA Astronaut Jeff Williams attend a training briefing, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 43 prime crew members: NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 backup crew members Jeff Williams of NASA, left, Alexey Ovchinin, center, and Sergei Volkov of Russia's Federal Space Agency (Roscosmos) stop to wave hello to photographers during their Soyuz TMA-16M spacecraft fit check, Sunday, March 15, 2015 at the Baikonur Cosmodrome in Kazakhstan. The prime crew members Russian Cosmonauts Mikhail Kornienko, Gennady Padalka of the Russian Federal Space Agency (Roscosmos), and NASA Astronaut Scott Kelly are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

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

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. -- On the slidewire basket bunker area of Launch Pad 39A, the STS-118 crew talks to the media before the crew's morning training activities in the terminal countdown demonstration test, or TCDT. At right, Mission Specialist Tracy Caldwell has the microphone. The others, from left, are Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Alvin Drew, Rick Mastracchio, Dave Williams and Barbara Morgan. Williams represents the Canadian Space Agency. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. 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. -- 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. -- On top of the fixed service structure of Launch Pad 39A, The STS-118 crew poses for a photo after conclusion of the terminal countdown demonstration test. From left are Pilot Charlie Hobaugh, Mission Specialist Rick Mastracchio, Commander Scott Kelly, and Mission Specialists Tracy Caldwell, Barbara R. Morgan, Alvin Drew and Dave Williams. Morgan, who is making her first space flight, 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. -- 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. -- 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. -- 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. -- On the top level of the Pad 39A fixed service structure, the STS-118 crew takes a break from training activities in the terminal countdown demonstration test, or TCDT. From left are Mission Specialists Dave Williams, Tracy Caldwell, Barbara R. Morgan and Alvin Drew, Pilot Charlie Hobaugh, Commander Scott Kelly and Mission Specialist Rick Mastracchio. Williams represents the Canadian Space Agency. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. Behind them is the top of the external tank. TCDTactivities 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. -- 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. -- 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 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. -- On the slidewire basket bunker area of Launch Pad 39A, the STS-118 crew greets the media before the crew's morning training activities in the terminal countdown demonstration test, or TCDT. From left are Commander Scott Kelly, Pilot Charlie Hobaugh and Mission Specialists Alvin Drew, Rick Mastracchio, Dave Williams, Barbara R. Morgan and Tracy Caldwell. Williams represents the Canadian Space Agency. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. 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. -- On the slidewire basket bunker area of Launch Pad 39A, the STS-118 crew talks to the media before the crew's morning training activities in the terminal countdown demonstration test, or TCDT. At left is Commander Scott Kelly, with the microphone. The others, from left, are Pilot Charlie Hobaugh and Mission Specialists Alvin Drew, Rick Mastracchio, Dave Williams, Barbara R. Morgan and Tracy Caldwell. Williams represents the Canadian Space Agency. Morgan joined NASA's Teacher in Space program in 1985 and was selected as an astronaut in 1998. 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. -- On an upper level of the Pad 39A fixed service structure, the STS-118 crew members look at the slidewire basket that is part of the emergency egress system. On the left are Commander Scott Kelly and Mission Specialists Barbara R. Morgan, Tracy Caldwell, Dave Williams and Alvin Drew. On the right is Mission Specialist Rick Mastracchio. 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. -- 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. -- 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. -- 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. -- 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. -- 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 (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 Orbiter Processing Facility bay 2, workers are on the wing of Endeavour, checking the progress as the payload bay doors close. The payload will be installed on the launch pad after rollout. The orbiter is designated for mission STS-118, targeted for launch on Aug. 9. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises seven astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew. Williams represents the Canadian Space Agency. Photo credit: NASA/Cory Huston

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. -- Back on the slidewire landing area of Pad 39A, the STS-118 crew learns about landing in the baskets in the event of an emergency. From left are Mission Specialist Rick Mastracchio, Commander Scott Kelly, Mission Specialists Barbara R. Morgan, Alvin Drew, Dave Williams and Tracy Caldwell, and Pilot Charlie Hobaugh. 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. TCDTactivities 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

JSC2006-E-43768 (4 Oct. 2006) --- Attired in training versions of their shuttle launch and entry suits, astronauts Scott J. Kelly (left), STS-118 commander; Charles O. Hobaugh, pilot; Tracy E. Caldwell and Richard A. (Rick) Mastracchio, mission specialists; Dafydd R. (Dave) Williams, mission specialist representing the Canadian Space Agency; Barbara R. Morgan, mission specialist; and Clayton C. Anderson, Expedition 15 NASA space station science officer and flight engineer; await the start of a training session in the Space Vehicle Mockup Facility at Johnson Space Center.

STS102-S-013 (21 March 2001) --- After a 5.3 million mile mission, The Space Shuttle Discovery approaches touchdown on Runway 15 at the KSC Shuttle Landing Facility in this aft view. The landing completed the successful 12-day STS-102 mission. Onboard the shuttle were astronauts James Wetherbee, James Kelly, Andy Thomas, and Paul Richards. Discovery’s touchdown also marked the return of the space station’s first resident crew – Expedition One which were William Shepherd, Yuri Gidzenko and Sergei Krikalev. STS-102 was the 103rd shuttle flight and the eighth shuttle mission to visit the station.

STS102-S-015 (21 March 2001)--- After a 5.3 million mile mission, The Space Shuttle Discovery approaches touchdown on Runway 15 at the KSC Shuttle Landing Facility in this aft view. The landing completed the successful 12-day STS-102 mission. Onboard the shuttle were astronauts James Wetherbee, James Kelly, Andy Thomas, and Paul Richards. Discovery’s touchdown also marked the return of the space station’s first resident crew – Expedition One which were William Shepherd, Yuri Gidzenko and Sergei Krikalev. STS-102 was the 103rd shuttle flight and the eighth shuttle mission to visit the station.

ISS015-E-23042 (17 Aug. 2007) --- The STS-118 crew poses for an in-space crew portrait prior to joining the Expedition 15 crewmembers for a press conference from the Destiny laboratory of the International Space Station. Front row, from the left, astronauts Alvin Drew and Barbara R. Morgan, both mission specialists, along with astronaut Scott Kelly, commander. Back row, from the left, astronauts Charlie Hobaugh, pilot, along with astronauts Tracy Caldwell, Rick Mastracchio and the Canadian Space Agency's Dave Williams, all mission specialist.

STS102-E-5369 (19 March 2001) --- Five astronauts and a Russian cosmonaut share space on the flight deck of the Space Shuttle Discovery following that spacecraft's separation from the International Space Station (ISS). Cosmonaut Sergei K. Krikalev, far left, joins astronaut William M. (Bill) Shepherd (bottom center) and cosmonaut Yuri P. Gidzenko (out of frame) on the return trip after several months aboard the ISS outpost. The other STS-102 crew members are (beginning second left) astronauts James M. Kelly, pilot; and Andrew S.W. Thomas, and Paul W. Richards, both mission specialists; along with astronaut James D. Wetherbee, commander.

JSC2006-E-43734 (4 Oct. 2006) --- Crew trainer Bob Behrendsen (standing, right background) briefs astronauts Scott J. Kelly (seated left), STS-118 commander; Charles O. Hobaugh, pilot; Tracy E. Caldwell and Richard A. (Rick) Mastracchio, mission specialists; Dafydd R. (Dave) Williams, mission specialist representing the Canadian Space Agency; Barbara R. Morgan, mission specialist; and Clayton C. Anderson, Expedition 15 NASA space station science officer and flight engineer; during a training session in the Space Vehicle Mockup Facility at the Johnson Space Center. The crewmembers are attired in training versions of their shuttle launch and entry suits.

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

JOHNSON SPACE CENTER, Houston -- STS118-S-002 -- 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, a mission specialist and NASA's first educator astronaut; 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 crewmembers are attired in training versions of their shuttle launch and entry suits.

STS102-319-028 (8 - 21 March 2001) --- The 10 astronauts and cosmonauts making up the STS-102, Expedition One and Expedition Two crews assemble in the Destiny laboratory for a group portrait. In front are, from the left, cosmonauts Yuri P. Gidzenko and Sergei Krikalev, astronauts William M. (Bill) Shepherd and Susan J. Helms, cosmonaut Yury V. Usachev and astronaut James S. Voss. In the rear are, from the left, astronauts James M. Kelly, Paul W. Richards, James D. Wetherbee and Andrew S.W. Thomas.

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, 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

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