The Soyuz TMA-11 capsule lays on its side on the Kazakh steppe, Friday, April 19, 2008. Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi landed their Soyuz TMA-11 spacecraft in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Reuters/Pool)

Steve Lindsey, Chief of NASA's Astronaut office, left, and Michael Sufferdini, International Station Program Manager, examine a map of central Kazakhstan as they received information at the Arkalyk airport April 19, 2008 on the landing of the Expedition 16 crew in the Soyuz TMA-11 capsule. The Soyuz made a ballistic landing, touching down more then 400 kilometers short of the intended target, but the crew reported by satellite phone to recovery forces that they were in good shape. Photo Credit: (NASA/Bill Ingalls)

Russian ground crews walk around the Soyuz TMA-11 spacecraft after it landed carrying Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi, Friday, April 19, 2008, in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Reuters/Pool)

A Russian ground crew member examines the over turned soil near the Soyuz TMA-11 spacecraft after it landed carrying Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi, Friday, April 19, 2008, in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Reuters/Pool)

Chief of NASA's Astronaut office, Steve Lindsey, left, and International Space Station Program Manager, Michael Suffredini, examine a map of central Kazakhstan at the Arkalyk airport as they received information on the landing of the Expedition 16 crew in the Soyuz TMA-11 capsule, Saturday, April 19, 2008. The Soyuz made a ballistic landing, touching down more then 400 kilometers short of the intended target in central Kazakhstan. The crew reported by satellite phone to recovery forces that they were in good shape. Photo Credit: (NASA/Bill Ingalls)

ISS022-E-033404 (21 Jan. 2010) --- The Soyuz TMA-16 spacecraft is featured in this image photographed by an Expedition 22 crew member on the International Space Station during the relocation of the Soyuz from the Zvezda Service Module’s aft port to the Poisk module. Russian cosmonaut Maxim Suraev, Soyuz commander and Expedition 22 flight engineer; along with NASA astronaut Jeffrey Williams, Expedition 22 commander, undocked the Soyuz spacecraft at 4:03 a.m. (CST) and docked it to Poisk at 4:24 a.m. on Jan. 21, 2010.

ISS022-E-033392 (21 Jan. 2010) --- The Soyuz TMA-16 spacecraft is featured in this image photographed by an Expedition 22 crew member on the International Space Station during the relocation of the Soyuz from the Zvezda Service Module’s aft port to the Poisk module. Russian cosmonaut Maxim Suraev, Soyuz commander and Expedition 22 flight engineer; along with NASA astronaut Jeffrey Williams, Expedition 22 commander, undocked the Soyuz spacecraft at 4:03 a.m. (CST) and docked it to Poisk at 4:24 a.m. on Jan. 21, 2010.

ISS023-E-005050 (18 March 2010) --- The Soyuz TMA-16 spacecraft departs from the International Space Station carrying NASA astronaut Jeffrey Williams, Expedition 22 commander; and Russian cosmonaut Maxim Suraev, Soyuz commander and flight engineer. Undocking occurred at 4:03 a.m. (EDT) on March 18, 2010. Suraev guided the spacecraft to a parachute-assisted landing at 7:24 a.m. near the town of Arkalyk, Kazakhstan, wrapping up a five-and-a-half-month stay aboard the space station.

ISS023-E-005049 (18 March 2010) --- The Soyuz TMA-16 spacecraft departs from the International Space Station carrying NASA astronaut Jeffrey Williams, Expedition 22 commander; and Russian cosmonaut Maxim Suraev, Soyuz commander and flight engineer. Undocking occurred at 4:03 a.m. (EDT) on March 18, 2010. Suraev guided the spacecraft to a parachute-assisted landing at 7:24 a.m. near the town of Arkalyk, Kazakhstan, wrapping up a five-and-a-half-month stay aboard the space station.

Expedition 16 Flight Engineer and Soyuz Commander Yuri Malenchenko, second from left, and Expedition 16 Commander Peggy Whitson meet with Russian officials at the foot of the airplane steps after they arrived at Chkalovsky Airport near Star City, Russia, Friday, April 19, 2008. Whitson, Malechenko and Yi landed their Soyuz TMA-11 spacecraft on April 19, 2008 in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Bill Ingalls)

Expedition 16 Flight Engineer and Soyuz Commander Yuri Malenchenko sits in a helicopter after he and fellow crew members Expedition 16 Commander Peggy Whitson and South Korean spaceflight participant So-yeon Yi landed their Soyuz TMA-11 capsule, Friday, April 19, 2008, in central Kazakhstan. Whitson and Malenchenko completed 192 days in space and Yi 11 days in orbit. Photo Credit: (NASA/Reuters/Pool)

International Space Station Program Manager Michael Suffredini watches as the first wave of helicopters leaves the Arkalyk airport in Kazakhstan in preparation for the Soyuz TMA-11 landing, Friday, April 19, 2008. The Soyuz TMA-11 spacecraft carrying Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spacelfight participant So-yeon Yi landed in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Bill Ingalls)

ISS022-E-033309 (21 Jan. 2010) --- The Soyuz TMA-16 spacecraft is featured in this image photographed by an Expedition 22 crew member on the International Space Station during the relocation of the Soyuz from the Zvezda Service Module’s aft port to the Poisk module. Russian cosmonaut Maxim Suraev, Soyuz commander and Expedition 22 flight engineer; along with NASA astronaut Jeffrey Williams, Expedition 22 commander, undocked the Soyuz spacecraft at 4:03 a.m. (CST) and docked it to Poisk at 4:24 a.m. on Jan. 21, 2010.

ISS022-E-033307 (21 Jan. 2010) --- The Soyuz TMA-16 spacecraft is featured in this image photographed by an Expedition 22 crew member on the International Space Station during the relocation of the Soyuz from the Zvezda Service Module’s aft port to the Poisk module. Russian cosmonaut Maxim Suraev, Soyuz commander and Expedition 22 flight engineer; along with NASA astronaut Jeffrey Williams, Expedition 22 commander, undocked the Soyuz spacecraft at 4:03 a.m. (CST) and docked it to Poisk at 4:24 a.m. on Jan. 21, 2010.

ISS022-E-033308 (21 Jan. 2010) --- The Soyuz TMA-16 spacecraft is featured in this image photographed by an Expedition 22 crew member on the International Space Station during the relocation of the Soyuz from the Zvezda Service Module’s aft port to the Poisk module. Russian cosmonaut Maxim Suraev, Soyuz commander and Expedition 22 flight engineer; along with NASA astronaut Jeffrey Williams, Expedition 22 commander, undocked the Soyuz spacecraft at 4:03 a.m. (CST) and docked it to Poisk at 4:24 a.m. on Jan. 21, 2010.

ISS022-E-033306 (21 Jan. 2010) --- The Soyuz TMA-16 spacecraft is featured in this image photographed by an Expedition 22 crew member on the International Space Station during the relocation of the Soyuz from the Zvezda Service Module’s aft port to the Poisk module. Russian cosmonaut Maxim Suraev, Soyuz commander and Expedition 22 flight engineer; along with NASA astronaut Jeffrey Williams, Expedition 22 commander, undocked the Soyuz spacecraft at 4:03 a.m. (CST) and docked it to Poisk at 4:24 a.m. on Jan. 21, 2010.

A Kazakh man herds cattle across the tarmac at the Arkalyk airport in Kazakhstan, Friday, April, 19, 2008. Arkalyk was used as one of the helicopter staging areas for the landing of the Soyuz TMA-11 spacecraft carrying Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi. The Soyuz made a ballistic landing, touching down more then 400 kilometers short of the intended target in central Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

A Russian Search and Rescue helicopter waits for refueling at the Arkalyk airport in Kazakhstan prior to taking off for the landing of the Soyuz TMA-11 spacecraft carrying Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi, Friday, April, 19, 2008. The Soyuz made a ballistic landing, touching down more then 400 kilometers short of the intended target in central Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Women in traditional Kazakh dress wait to welcome Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi at the Kustanay airport in Kazakhstan, Friday, April 19, 2008. Whitson, Malenchenko and Yi landed their Soyuz TMA-11 capule in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Bill Ingalls)

Chief of NASA's Astronaut office, Steve Lindsey, receives information at the Arkalyk airport in Kazakhstan, Friday, April 19, 2008, on the landing of the Expedition 16 crew in the Soyuz TMA-11 capsule. The Soyuz made a ballistic landing, touching down more then 400 kilometers short of the intended target in central Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

ISS023-E-005053 (18 March 2010) --- The Soyuz TMA-16 spacecraft departs from the International Space Station carrying NASA astronaut Jeffrey Williams, Expedition 22 commander; and Russian cosmonaut Maxim Suraev, Soyuz commander and flight engineer. Undocking occurred at 4:03 a.m. (EDT) on March 18, 2010. Suraev guided the spacecraft to a parachute-assisted landing at 7:24 a.m. near the town of Arkalyk, Kazakhstan, wrapping up a five-and-a-half-month stay aboard the space station.

A Russian search and rescue helicopter flies over the burning Kazakh steppe after Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi landed their Soyuz TMA-11 spacecraft, Friday, April 19, 2008, in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Reuters/Pool)

Expedition 16 Commander Peggy Whitson is helped out of a helicopter after landing in northern Kazakhstan, Friday, April 19, 2008. Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi landed their Soyuz TMA-11 spacecraft in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Reuters/Pool)

South Korean spaceflight participant So-Yeon YI jokes with Russian doctors in a helicopter after she and fellow crew members Expedition 16 Commander Peggy Whitson and Flight Engineer and Soyuz Commander Yuri Malenchenko landed their Soyuz TMA-11 capsule, Friday, April 19, 2008, in central Kazakhstan. Whitson and Malenchenko completed 192 days in space and Yi 11 days in orbit. Photo Credit: (NASA/Reuters/Pool)

Rescue helicopters fly Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi to Kustanay, Kazakhstan shortly after their Soyuz TMA-11 spacecraft landed in central Kazakhstan, Friday, April 19, 2008. Whitson and Malenchenko completed 192 days in space and Yi spent 11 days in orbit. Photo Credit: (NASA/Reuters/Pool)

ISS023-E-005074 (18 March 2010) --- The Soyuz TMA-16 spacecraft departs from the International Space Station carrying NASA astronaut Jeffrey Williams, Expedition 22 commander; and Russian cosmonaut Maxim Suraev, Soyuz commander and flight engineer. Undocking occurred at 4:03 a.m. (EDT) on March 18, 2010. Suraev guided the spacecraft to a parachute-assisted landing at 7:24 a.m. near the town of Arkalyk, Kazakhstan, wrapping up a five-and-a-half-month stay aboard the space station.

Expedition 16 Commander Peggy Whitson is helped out of a helicopter after landing in northern Kazakhstan, Friday, April 19, 2008. Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi landed their Soyuz TMA-11 spacecraft in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Reuters/Pool)

Expedition 16 Commander Peggy Whitson, bottom, South Korean spaceflight participant So-yeon Yi and Flight Engineer and Soyuz Commander Yuri Malenchenko, top, walk down the airplane steps as they arrive at Chkalovsky Airport near Star City, Russia, Friday, April 19, 2008. Whitson, Malechenko and Yi landed their Soyuz TMA-11 spacecraft on April 19, 2008 in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Bill Ingalls)

Russian Sokol flight suits of Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi are seen laying on the ground shortly after their Soyuz TMA-11 spacecraft landed in central Kazakhstan, Friday, April 19, 2008, to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Reuters/Pool)

ISS023-E-005072 (18 March 2010) --- The Soyuz TMA-16 spacecraft departs from the International Space Station carrying NASA astronaut Jeffrey Williams, Expedition 22 commander; and Russian cosmonaut Maxim Suraev, Soyuz commander and flight engineer. Undocking occurred at 4:03 a.m. (EDT) on March 18, 2010. Suraev guided the spacecraft to a parachute-assisted landing at 7:24 a.m. near the town of Arkalyk, Kazakhstan, wrapping up a five-and-a-half-month stay aboard the space station.

Expedition 16 Commander Peggy Whitson waves to a crowd of well-wishers from the top of the airplane steps as she arrives at Chkalovsky Airport near Star City, Russia along with Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi, Friday, April 19, 2008. Whitson, Malechenko and Yi landed their Soyuz TMA-11 spacecraft in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Bill Ingalls)

Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor blasted off from the Baikonur Cosmodrome in Kazakhstan at sunset, Wednesday, Oct. 10, 2007 in their Soyuz TMA-11 spacecraft. They will dock with the International Space Station on October 12. Whitson and Malenchenko will spend six months on the station, while Shukor will return to Earth October 21 with two of the Expedition 15 crewmembers currently on the complex. Photo Credit: (NASA/Bill Ingalls)

Chief of the NASA Astronaut office, Steve Lindsey, left, and interpreter Paul Kharmats wait at the Arkalyk airport in Kazakhstan as Russian helicopters are refueled, Friday, April 19, 2008. Arkalyk was used as one of the helicopter staging areas for the landing of the Soyuz TMA-11 spacecraft carrying Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi. The Soyuz made a ballistic landing, touching down more then 400 kilometers short of the intended target in central Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft is transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft is transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft is transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft is transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft is transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft was transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft is transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft is transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft is transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

ISS022-E-033320 (21 Jan. 2010) --- The International Space Station is featured in this image photographed by a crew member on the Soyuz TMA-16 spacecraft during the relocation of the Soyuz from the Zvezda Service Module’s aft port to the Poisk module. Russian cosmonaut Maxim Suraev, Soyuz commander and Expedition 22 flight engineer; along with NASA astronaut Jeffrey Williams, Expedition 22 commander, undocked the Soyuz spacecraft at 4:03 a.m. (CST) and docked it to Poisk at 4:24 a.m. on Jan. 21, 2010.

Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor blasted off from the Baikonur Cosmodrome in Kazakhstan at sunset, Wednesday, Oct. 10, 2007 in their Soyuz TMA-11 spacecraft. They will dock with the International Space Station on October 12. Whitson and Malenchenko will spend six months on the station, while Shukor will return to Earth October 21 with two of the Expedition 15 crewmembers currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-16 launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Sept. 30, 2009 carrying Expedition 21 Flight Engineer Jeffrey N. Williams, Flight Engineer Maxim Suraev and Spaceflight Participant Guy Laliberté to the International Space Station. (Photo Credit: NASA/Bill Ingalls)

The Soyuz TMA-16 launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Sept. 30, 2009 carrying Expedition 21 Flight Engineer Jeffrey N. Williams, Flight Engineer Maxim Suraev and Spaceflight Participant Guy Laliberté to the International Space Station. (Photo Credit: NASA/Bill Ingalls)

The Soyuz TMA-16 launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Sept. 30, 2009 carrying Expedition 21 Flight Engineer Jeffrey N. Williams, Flight Engineer Maxim Suraev and Spaceflight Participant Guy Laliberté to the International Space Station. (Photo Credit: NASA/Bill Ingalls)

The Soyuz TMA-16 launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Sept. 30, 2009 carrying Expedition 21 Flight Engineer Jeffrey N. Williams, Flight Engineer Maxim Suraev and Spaceflight Participant Guy Laliberté to the International Space Station. (Photo Credit: NASA/Bill Ingalls)

The Soyuz TMA-16 launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Sept. 30, 2009 carrying Expedition 21 Flight Engineer Jeffrey N. Williams, Flight Engineer Maxim Suraev and Spaceflight Participant Guy Laliberté to the International Space Station. (Photo Credit: NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft was transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft was transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft was transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-11 spacecraft is transported by railcar to its launch pad at the Baikonur Cosmodrome, Monday, Oct. 8, 2007, in Kazakhstan for an October 10th launch date. The Soyuz will carry Expedition 16 Commander Peggy Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor to the International Space Station. Whitson and Malenchenko will spend six months on the station. Shukor, who is flying under an agreement between Malaysia and the Russian Federal Space Agency, will return to Earth October 21 with two of the Expedition 15 crew members currently on the complex. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-16 launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Sept. 30, 2009 carrying Expedition 21 Flight Engineer Jeffrey N. Williams, Flight Engineer Maxim Suraev and Spaceflight Participant Guy Laliberté to the International Space Station. (Photo Credit: NASA/Bill Ingalls)

The Soyuz TMA-16 launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Sept. 30, 2009 carrying Expedition 21 Flight Engineer Jeffrey N. Williams, Flight Engineer Maxim Suraev and Spaceflight Participant Guy Laliberté to the International Space Station. (Photo Credit: NASA/Bill Ingalls)

The Soyuz TMA-16 launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Sept. 30, 2009 carrying Expedition 21 Flight Engineer Jeffrey N. Williams, Flight Engineer Maxim Suraev and Spaceflight Participant Guy Laliberté to the International Space Station. (Photo Credit: NASA/Bill Ingalls)

Expedition 21 Flight Engineer Jeffrey N. Williams, top, Spaceflight Participant Guy Laliberté, middle, and Expedition 21 Flight Engineer Maxim Suraev wave farewell from the bottom of the Soyuz launch pad prior shortly before their launch onboard the Soyuz TMA-16 from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Sept. 30, 2009. (Photo Credit: NASA/Bill Ingalls)

Commander Jeff Williams poses for a photo in the Quest Airlock (A/L) with all of his mission patches. The patches are, from left, STS-101, Soyuz TMA-8, Expedition 13, Soyuz TMA-16, Expedition 21, Expedition 22, Soyuz TMA-20M, Expedition 47, and Expedition 48.

Expedition 24 NASA Flight Engineer Shannon Walker, top, Expedition 24 NASA Flight Engineer Doug Wheelock, center, and Expedition 24 Soyuz Commander Fyodor Yurchikhin prepare to board their Soyuz TMA-19 spacecraft at the Baikonur Cosmodrome in Baikonur, Kazakhstan, Wednesday, June 16, 2010. Walker, Wheelock and Yurchikhin launched in their Soyuz TMA-19 rocket from the Baikonur Cosmodrome in Kazakhstan on Wednesday, June 16, 2010 at 3:35 a.m. Photo Credit: (NASA/Carla Cioffi)

JSC2008-E-032253 (April 2008) --- Computer-generated artist's rendering of the International Space Station as of April 19, 2008. Soyuz 15 (TMA-11) undocks from the Zarya nadir port, returning the Expedition 16 crew and spaceflight participant to Earth. Soyuz 16 (TMA-12) remains docked at the Pirs Docking Compartment and the Jules Verne Automated Transfer Vehicle (ATV-1) is linked to the Zvezda Service Module aft port.

JSC2008-E-032254 (April 2008) --- Computer-generated artist's rendering of the International Space Station as of April 19, 2008. Soyuz 15 (TMA-11) undocks from the Zarya nadir port, returning the Expedition 16 crew and spaceflight participant to Earth. Soyuz 16 (TMA-12) remains docked at the Pirs Docking Compartment and the Jules Verne Automated Transfer Vehicle (ATV-1) is linked to the Zvezda Service Module aft port.

The Soyuz TMA-19 spacecraft is seen at the Soyuz launch pad secured by its scaffolding at the Baikonur Cosmodrome in Kazakhstan, Sunday, June 13, 2010. The Soyuz is scheduled to launch the crew of Expedition 24 on Wednesday, June 16, 2010 at 3:35 a.m. Kazakhstan time. Photo Credit: (NASA/Carla Cioffi)

JSC2009-E-215174 (October 2009) --- Computer-generated artist?s rendering of the International Space Station as of Oct. 2, 2009. Soyuz 20 (TMA-16) docks to the Zvezda Service Module?s aft port, bringing NASA astronaut Jeffrey Williams, Expedition 21 flight engineer; Russian cosmonaut Maxim Suraev, Soyuz commander and flight engineer; and spaceflight participant Guy Laliberte. Soyuz 18 (TMA-14) is linked to the Pirs Docking Compartment and Soyuz 19 (TMA-15) remains docked to the Zarya nadir port. The Japanese H-II Transfer Vehicle (HTV) is berthed to the Harmony node?s nadir port.

The Soyuz TMA-19 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, June 16, 2010 carrying Expedition 24 NASA Flight Engineers Shannon Walker and Douglas Wheelock, and Soyuz Commander Fyodor Yurchikhin of Russia to the International Space Station. Their Soyuz TMA-19 rocket launched at 3:35 a.m Kazakhstan time. (Photo Credit: NASA/Carla Cioffi)

Live video from the Soyuz TMA-11 spacecraft of the International Space Station is shown on the screen, upper right, in the Russian Mission Control Center in Korolev, outside Moscow. Expedition 16 Commander Peggy Whitson, Soyuz Commander and Flight Engineer Yuri Malenchenko and Malaysian Spaceflight Participant Sheikh Muszaphar Shukor docked their Soyuz TMA-11 spacecraft to the station at 10:50 a.m. EDT. Oct. 12, 2007. The crew launched on Wednesday from the Baikonur Cosmodrome in Kazakhstan. Photo Credit: "NASA/Bill Ingalls"

Live video from the Soyuz TMA-11 spacecraft of the International Space Station is shown on the screen in the Russian Mission Control Center in Korolev, outside Moscow, Friday, Oct. 12, 2007. Expedition 16 Commander Peggy Whitson, Soyuz Commander and Flight Engineer Yuri Malenchenko and Malaysian spaceflight participant Sheikh Muszaphar Shukor docked their Soyuz TMA-11 spacecraft to the ISS at 10:50 a.m. EDT, October 12. The crew launched on Wednesday from the Baikonur Cosmodrome in Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-19 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, June 16, 2010 carrying Expedition 24 NASA Flight Engineers Shannon Walker and Douglas Wheelock, and Soyuz Commander Fyodor Yurchikhin of Russia to the International Space Station. Their Soyuz TMA-19 rocket launched at 3:35 a.m Kazakhstan time. (Photo Credit: NASA/Carla Cioffi)

The Soyuz TMA-19 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, June 16, 2010 carrying Expedition 24 NASA Flight Engineers Shannon Walker and Douglas Wheelock, and Soyuz Commander Fyodor Yurchikhin of Russia to the International Space Station. Their Soyuz TMA-19 rocket launched at 3:35 a.m Kazakhstan time. (Photo Credit: NASA/Carla Cioffi)

Korolev, Russia -- Live video from the Soyuz TMA-11 spacecraft of the International Space Station is shown on the screen in the Russian Mission Control Center, Korolev, outside Moscow. Expedition 16 Commander Peggy Whitson, Soyuz Commander and Flight Engineer Yuri Malenchenko and Malaysian Spaceflight Participant Sheikh Muszaphar Shukor docked their Soyuz TMA-11 spacecraft to the station at 10:50 a.m. EDT Oct. 12, 2007. The crew launched Wednesday from the Baikonur Cosmodrome in Kazakhstan. Photo credit: NASA/Bill Ingalls

Live video from the Soyuz TMA-11 spacecraft of the International Space Station is shown on the screen in the Russian Mission Control Center in Korolev, outside Moscow. Expedition 16 Commander Peggy Whitson, Soyuz Commander and Flight Engineer Yuri Malenchenko and Malaysian Spaceflight Participant Sheikh Muszaphar Shukor docked their Soyuz TMA-11 spacecraft to the station at 10:50 a.m. EDT. Oct. 12, 2007. The crew launched on Wednesday from the Baikonur Cosmodrome in Kazakhstan. Photo Credit: "NASA/Bill Ingalls"

The Soyuz TMA-19 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, June 16, 2010 carrying Expedition 24 NASA Flight Engineers Shannon Walker and Douglas Wheelock, and Soyuz Commander Fyodor Yurchikhin of Russia to the International Space Station. Their Soyuz TMA-19 rocket launched at 3:35 a.m Kazakhstan time. (Photo Credit: NASA/Carla Cioffi)

Expedition 20 Flight Engineer Michael Barratt is helped out of a Russian Search and Rescue helicopter after a two hour helicopter flight from the Soyuz TMA-14 landing site to Kustanay, kazakhstan on Sunday, Oct. 11, 2009. Barratt, Expedition 20 Commander Gennady Padalka, and spaceflight participant Guy Laliberté landed their Soyuz TMA-14 capsule near the town of Arkalyk, Kazakhstan. Padalka and Barratt are returned from six months onboard the International Space Station, along with Laliberté who arrived at the station on Oct. 2 with Expedition 21 Flight Engineers Jeff Williams and Maxim Suraev aboard the Soyuz TMA-16 spacecraft. Photo Credit: (NASA/Bill Ingalls)

JSC2009-E-215175 (October 2009) --- Computer-generated artist?s rendering of the International Space Station as of Oct. 11, 2009. Soyuz 18 (TMA-14) undocks from the Pirs Docking Compartment, returning Russian cosmonaut Gennady Padalka, Expedition 19/20 commander; NASA astronaut Michael Barratt, Expedition 19/20 flight engineer; and spaceflight participant Guy Laliberte to Earth. Soyuz 20 (TMA-16) is docked to the Zvezda Service Module?s aft port and Soyuz 19 (TMA-15) remains linked to the Zarya nadir port. The Japanese H-II Transfer Vehicle (HTV) is berthed to the Harmony node?s nadir port.

ISS026-E-034570 (16 March 2011) --- NASA astronaut Scott Kelly (center), Expedition 26 commander; along with Russian cosmonauts Oleg Skripochka (left) and Alexander Kaleri, both flight engineers, are pictured in the Soyuz TMA-01M spacecraft prior to their departure from the International Space Station on March 16, 2011.

Expedition 24 NASA Flight Engineer Shannon Walker, top, Expedition 24 NASA Flight Engineer Doug Wheelock, center, and Expedition 24 Soyuz Commander Fyodor Yurchikhin wave farewell from the bottom of the Soyuz rocket at the Baikonur Cosmodrome in Baikonur, Kazakhstan, Wednesday, June 16, 2010. Walker, Wheelock and Yurchikhin launched in their Soyuz TMA-19 rocket from the Baikonur Cosmodrome in Kazakhstan on Wednesday, June 16, 2010 at 3:35 a.m. Photo Credit: (NASA/Carla Cioffi)

Expedition 24 NASA Flight Engineer Shannon Walker, top, Expedition 24 NASA Flight Engineer Doug Wheelock, center, and Expedition 24 Soyuz Commander Fyodor Yurchikhin wave farewell from the bottom of the Soyuz rocket at the Baikonur Cosmodrome in Baikonur, Kazakhstan, Wednesday, June 16, 2010. Walker, Wheelock and Yurchikhin launched in their Soyuz TMA-19 rocket from the Baikonur Cosmodrome in Kazakhstan on Wednesday, June 16, 2010 at 3:35 a.m. Photo Credit: (NASA/Carla Cioffi)

Expedition 24 Soyuz Commander Fyodor Yurchikhin, far right, and Flight Engineer Doug Wheelock, third from right, are escorted to the Soyuz rocket at the launch pad at the Baikonur Cosmodrome in Baikonur, Kazakhstan on Wednesday, June 16, 2010. Yurchikhin, Wheelock and Flight Engineer Shannon Walker launched in their Soyuz TMA-19 rocket at 3:35 a.m. Wednesday, June 16, 2010. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-20 spacecraft is seen shortly after arrival to the launch pad Monday, Dec. 13, 2010 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz is scheduled to launch the crew of Expedition 26 on Thursday, Dec. 16, 2010 at 1:09 a.m. local time. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-20 spacecraft is seen shortly after arrival to the launch pad Monday, Dec. 13, 2010 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz is scheduled to launch the crew of Expedition 26 on Thursday, Dec. 16, 2010 at 1:09 a.m. local time. Photo Credit: (NASA/Carla Cioffi)

A view of the Soyuz rocket engines after engineers at the Baikonur Cosmodrome mated the Soyuz TMA-4 capsule with its booster rocket in preparation for a launch on April 19 of the Expedition 9 crew and a European astronaut to the International Space Station, Friday, April 16, 2004 in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-20 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, December 16, 2010 carrying Expedition 26 Soyuz Commander Dmitry Kondratyev of Russia, NASA Flight Engineer Catherine Coleman and European Space Agency astronaut Paolo Nespoli to the International Space Station. (Photo Credit: NASA/Carla Cioffi)

The Soyuz TMA-20 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, December 16, 2010 carrying Expedition 26 Soyuz Commander Dmitry Kondratyev of Russia, NASA Flight Engineer Catherine Coleman and European Space Agency astronaut Paolo Nespoli to the International Space Station. (Photo Credit: NASA/Carla Cioffi)

The Soyuz TMA-20 spacecraft is seen as it arrives at the launch pad Monday, Dec. 13, 2010 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz is scheduled to launch the crew of Expedition 26 on Thursday, Dec. 16, 2010. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-20 spacecraft is seen as it arrives at the launch pad Monday, Dec. 13, 2010 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz is scheduled to launch the crew of Expedition 26 on Thursday, Dec. 16, 2010. Photo Credit: (NASA/Carla Cioffi)

A view of the Soyuz rocket engines after engineers at the Baikonur Cosmodrome mated the Soyuz TMA-4 capsule with its booster rocket in preparation for a launch on April 19 of the Expedition 9 crew and a European astronaut to the International Space Station, Friday, April 16, 2004 in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

A view of the Soyuz rocket engines after engineers at the Baikonur Cosmodrome mated the Soyuz TMA-4 capsule with its booster rocket in preparation for a launch on April 19 of the Expedition 9 crew and a European astronaut to the International Space Station, Friday, April 16, 2004 in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-20 spacecraft is seen shortly after arriving at the launch pad Monday, Dec. 13, 2010 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz is scheduled to launch the crew of Expedition 26 on Thursday, Dec. 16, 2010 at 1:09 a.m. local time. Photo Credit: (NASA/Carla Cioffi)

A view of the Soyuz rocket engines after engineers at the Baikonur Cosmodrome mated the Soyuz TMA-4 capsule with its booster rocket in preparation for a launch on April 19 of the Expedition 9 crew and a European astronaut to the International Space Station, Friday, April 16, 2004 in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-20 spacecraft is seen shortly after arrival to the launch pad Monday, Dec. 13, 2010 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz is scheduled to launch the crew of Expedition 26 on Thursday, Dec. 16, 2010 at 1:09 a.m. local time. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-20 spacecraft is seen as it arrives at the launch pad Monday, Dec. 13, 2010 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz is scheduled to launch the crew of Expedition 26 on Thursday, Dec. 16, 2010. Photo Credit: (NASA/Carla Cioffi)

The Soyuz rocket is rolled out to the launch pad Monday, Sept. 28, 2009 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz is scheduled to launch the crew of Expedition 21 and a spaceflight participant on Sept. 30, 2009. Photo Credit: (NASA/Bill Ingalls)

The Soyuz rocket is rolled out to the launch pad Monday, Sept. 28, 2009 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz is scheduled to launch the crew of Expedition 21 and a spaceflight participant on Sept. 30, 2009. Photo Credit: (NASA/Bill Ingalls)

The Soyuz rocket is rolled out to the launch pad Monday, Sept. 28, 2009 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz is scheduled to launch the crew of Expedition 21 and a spaceflight participant on Sept. 30, 2009. Photo Credit: (NASA/Bill Ingalls)

KAZAKHASTAN - The Soyuz TMA-14 spacecraft is seen as it lands with Expedition 20 Commander Gennady Padalka, Flight Engineer Michael Barratt, and spaceflight participant Guy Laliberte near the town of Arkalyk, Kazakhstan, on Sunday, Oct. 11, 2009. Padalka and Barratt are returning from six months onboard the International Space Station, along with Laliberte who arrived at the station on Oct. 2 with Expedition 21 Flight Engineers Jeff Williams and Maxim Suraev aboard the Soyuz TMA-16 spacecraft. Photo Credit: NASA/Bill Ingalls

The Soyuz TMA-14 spacecraft is seen as it lands with Expedition 20 Commander Gennady Padalka, Flight Engineer Michael Barratt, and spaceflight participant Guy Laliberté near the town of Arkalyk, Kazakhstan on Sunday, Oct. 11, 2009. Padalka and Barratt are returning from six months onboard the International Space Station, along with Laliberté who arrived at the station on Oct. 2 with Expedition 21 Flight Engineers Jeff Williams and Maxim Suraev aboard the Soyuz TMA-16 spacecraft. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-14 spacecraft is seen as it lands with Expedition 20 Commander Gennady Padalka, Flight Engineer Michael Barratt, and spaceflight participant Guy Laliberté near the town of Arkalyk, Kazakhstan on Sunday, Oct. 11, 2009. Padalka and Barratt are returning from six months onboard the International Space Station, along with Laliberté who arrived at the station on Oct. 2 with Expedition 21 Flight Engineers Jeff Williams and Maxim Suraev aboard the Soyuz TMA-16 spacecraft. Photo Credit: (NASA/Bill Ingalls)

JSC2009-E-228628 (December 2009) --- Computer-generated artist?s rendering of the International Space Station as of Dec. 1, 2009. Soyuz 19 (TMA-15) undocks from the Zarya nadir port. Progress 35 resupply vehicle is docked to the Pirs Docking Compartment and Soyuz 20 (TMA-16) remains linked to the Zvezda Service Module?s aft port. The Russian Mini-Research Module 2 (MRM2) is docked to the Zvezda?s zenith port.

JSC2009-E-223488 (October 2009) --- Computer-generated artist?s rendering of the International Space Station as of Oct. 30, 2009. Japanese H-II Transfer Vehicle (HTV) is unberthed from the Harmony node?s nadir port. Soyuz 19 (TMA-15) remains docked to the Zarya nadir port and Soyuz 20 (TMA-16) remains linked to the Zvezda Service Module?s aft port.

KAZAKHASTAN - The Soyuz TMA-14 spacecraft is seen as it lands with Expedition 20 Commander Gennady Padalka, Flight Engineer Michael Barratt, and spaceflight participant Guy Laliberte near the town of Arkalyk, Kazakhstan, on Sunday, Oct. 11, 2009. Padalka and Barratt are returning from six months onboard the International Space Station, along with Laliberte who arrived at the station on Oct. 2 with Expedition 21 Flight Engineers Jeff Williams and Maxim Suraev aboard the Soyuz TMA-16 spacecraft. Photo Credit: NASA/Bill Ingalls

The Soyuz TMA-14 spacecraft is seen as it lands with Expedition 20 Commander Gennady Padalka, Flight Engineer Michael Barratt, and spaceflight participant Guy Laliberté near the town of Arkalyk, Kazakhstan on Sunday, Oct. 11, 2009. Padalka and Barratt are returning from six months onboard the International Space Station, along with Laliberté who arrived at the station on Oct. 2 with Expedition 21 Flight Engineers Jeff Williams and Maxim Suraev aboard the Soyuz TMA-16 spacecraft. Photo Credit: (NASA/Bill Ingalls)