jsc2024e016951 (Feb. 28, 2024) --- Soyuz MS-25 crew member Tracy Dyson from NASA is pictured during crew qualification exams at the Gagarin Cosmonaut Training Center in Star City, Russia. Credit: GCTC/Roscosmos

jsc2024e016941 (Feb. 28, 2024) --- Soyuz MS-25 backup crew member Don Pettit from NASA is pictured in his Sokol launch and entry suit signing in for qualification exams at the Gagarin Cosmonaut Training Center in Star City, Russia. Credit: GCTC/Roscosmos

jsc2024e016944 (Feb. 28, 2024) --- Soyuz MS-25 crew members (from left) Tracy Dyson from NASA, Oleg Novitskiy from Roscosmos, and Belarus spaceflight participant Marina Vasilevskaya meet with mission managers before beginning crew qualification exams at the Gagarin Cosmonaut Training Center in Star City, Russia. Credit: GCTC/Roscosmos

jsc2024e016953 (Feb. 28, 2024) --- Soyuz MS-25 crew members (from left) Tracy Dyson from NASA, Oleg Novitskiy from Roscosmos, and Belarus spaceflight participant Marina Vasilevskaya wave to photographers during their crew qualification exams at the Gagarin Cosmonaut Training Center in Star City, Russia. Credit: GCTC/Roscosmos

jsc2024e016942 (Feb. 28, 2024) --- Soyuz MS-25 backup crew members (from left) Don Pettit from NASA, Ivan Vagner from Roscosmos, and Belarus spaceflight participant Anastasia Lenkova are pictured in their Sokol Launch and entry suits arriving for crew qualification exams at the Gagarin Cosmonaut Training Center in Star City, Russia. Credit: GCTC/Roscosmos

jsc2024e016952 (Feb. 28, 2024) --- Soyuz MS-25 crew members (from left) Tracy Dyson from NASA, Oleg Novitskiy from Roscosmos, and Belarus spaceflight participant Marina Vasilevskaya join hands during their crew qualification exams at the Gagarin Cosmonaut Training Center in Star City, Russia. Credit: GCTC/Roscosmos

jsc2024e016943 (Feb. 28, 2024) --- Soyuz MS-25 backup crew member Don Pettit from NASA is pictured in his Sokol launch and entry suit during crew qualification exams at the Gagarin Cosmonaut Training Center in Star City, Russia. Credit: GCTC/Roscosmos

STAR CITY, RUSSIA - Expedition Six Flight Engineer Nikolai Budarin (left), Commander Ken Bowersox (center), and NASA ISS Science Officer Don Pettit (right) pose for photos at a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. The Expedition Six crew spent 161 days in space, 159 manning the International Space Station. Photo Credit: NASA/Bill Ingalls

STAR CITY, RUSSIA - Expedition Six NASA ISS Science Officer Don Pettit speaks during a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. The Expedition Six crew spent 161 days in space, 159 manning the International Space Station. Photo Credit: NASA/Bill Ingalls

STAR CITY, RUSSIA - Expedition Six Flight Engineer Nikolai Budarin speaks during a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. The Expedition Six crew spent 161 days in space, 159 manning the International Space Station. Photo Credit: NASA/Bill Ingalls

STAR CITY, RUSSIA - Expedition Six Commander Ken Bowersox speaks at a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. The Expedition Six crew spent 161 days in space, 159 manning the International Space Station. Photo Credit: NASA/Bill Ingalls

STAR CITY, RUSSIA - Expedition Six Flight Engineer Nikolai Budarin (left), Commander Ken Bowersox (center), and NASA ISS Science Officer Don Pettit (right) answer questions during a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. The Expedition Six crew spent 161 days in space, 159 manning the International Space Station. Photo Credit: NASA/Bill Ingalls

STAR CITY, RUSSIA - Expedition Six Flight Engineer Nikolai Budarin (large), Commander Ken Bowersox (center), and NASA ISS Science Officer Don Pettit (right) pose for photos at a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. The Expedition Six crew spent 161 days in space, 159 manning the International Space Station. Photo Credit: NASA/Bill Ingalls

NASA astronaut Chris Ferguson undergoes a fit check of his Sokol space suit at the Zvezda facility on Tuesday, March 29, 2011, in Moscow. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Soyuz suits that will be required in the event of an emergency. ( NASA Photo / Houston Chronicle, Smiley N. Pool )

View of the Flight Control Room at the Russian Mission Control Center in Korolev, Russia, located on the outskirts of Moscow, Wednesday, April 21, 2004. Photo Credit: (NASA/Bill Ingalls)

NASA Deputy Administrator Fred Gregory, far right, and Russian Federal Space Agency Deputy General-Director Nikolai Moiseev, second from right, answer questions from reporters along with other Russian space officials at a news conference, Wednesday, April 21, 2004, at the Russian Mission Control Center outside Moscow following the docking of the Expedition 9 crew and a European Space Agency astronaut to the International Space Station in a Russian Soyuz spacecraft. Photo Credit: (NASA/Bill Ingalls)

View from the balcony of the Russian Mission Control Center in Korolev, Russia moments before the Soyuz TMA-14 docks to the International Space Station on Saturday, March 28, 2009. A view of the International Space Station from Soyuz onboard cameras is visible in the upper right display. Photo Credit: (NASA/Bill Ingalls)

JSC2011-E-040291 (28 March 2011) --- NASA astronaut Doug Hurley, STS-135 pilot, dons a Sokol spacesuit March 28, 2011, at the Zvezda facility in Moscow. Hurley's name appears first in English and then in Russian on his suit. The order is reversed on the suits of Russian cosmonauts. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

View of the Flight Control Room at the Russian Mission Control Center in Korolev, Russia, located on the outskirts of Moscow, Wednesday, April 21, 2004. Photo Credit: (NASA/Bill Ingalls)

Managers from NASA, Roscosmos, RSC-Energia, TsNIIMash and other related agencies answer reporters questions during a Soyuz post-docking press conference at the Russian mission Control Center in Korolev, Russia on Saturday March 28, 2009. The Soyuz TMA-14 docked to the International Space Station carrying Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

JSC2011-E-040323 (29 March 2011) --- NASA astronaut Sandy Magnus, STS-135 mission specialist, looks at a snow-covered neighborhood out the window of a van carrying her back to Star City following a fit check of her Sokol spacesuit at the Zvezda facility in Moscow March 29, 2011. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian spacesuits which would be required in the event of an emergency. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

Valery Grin, Deputy Head of State Commission, talks on the phone to the six crew members onboard the International Space Station from the Russian Mission Control Center, Korolev, Russia, Saturday, March 28, 2009. The Soyuz TMA-14 spacecraft docked to the International Space Station and delivered Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Rex Walheim undergoes a fit check of his Sokol space suit at the Zvezda facility on Monday, March 28, 2011, in Moscow. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Soyuz suits that will be required in the event of an emergency. ( NASA Photo / Houston Chronicle, Smiley N. Pool )

Mike Hawes, NASA's Acting Associate Administrator, talks on the phone to the six crew members onboard the International Space Station from the Russian Mission Control Center, Korolev, Russia, Saturday, March 28, 2009. The Soyuz TMA-14 spacecraft docked to the International Space Station and delivered Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

Renita Fincke, wife of Expedition 9 Flight Engineer and NASA International Space Station Science Officer Michael Fincke, smiles with their two-year old son Chandra at the Russian Mission Control Center outside Moscow, Wednesday, April 21, 2004, following the successful docking of the Russian Soyuz capsule carrying Fincke, Expedition 9 Commander Gennady Padalka and European Space Agency astronaut Andre Kuipers of the Netherlands to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Alexei Krasnov, Director of Manned Space Programs Department, Roscosmos, answers reporters questions during a Soyuz post-docking press conference at the Russian mission Control Center in Korolev, Russia on Saturday March 28, 2009. The Soyuz TMA-14 docked to the International Space Station carrying Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

A large TV screen in Russian Mission Control Center in Korolev, Russia shows Cosmonaut Yury Lonchakov, right, welcoming Expedition 19 Flight Engineer Michael R. Barratt onboard the International Space Station after he fellow crew members Expedition 19 Commander Gennady I. Padalka and Spaceflight Participant Charles Simonyi docked their Soyuz TMA-14 spacecraft on Saturday, March 28, 2009. Photo Credit: (NASA/Bill Ingalls)

NASA Deputy Administrator Fred Gregory, second from right, and Russian Federal Space Agency Deputy General-Director Nikolai Moiseev, center, answer questions from reporters along with other Russian space officials at a news conference, Wednesday, April 21, 2004, at the Russian Mission Control Center outside Moscow following the docking of the Expedition 9 crew and a European Space Agency astronaut to the International Space Station in a Russian Soyuz spacecraft. Photo Credit: (NASA/Bill Ingalls)

Vitaly Lopota, President, General Designer, RSC-Energia, answers reporters questions during a Soyuz post-docking press conference at the Russian mission Control Center in Korolev, Russia on Saturday March 28, 2009. The Soyuz TMA-14 docked to the International Space Station carrying Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

JSC2011-E-040322 (29 March 2011) --- NASA astronaut Sandy Magnus, STS-135 mission specialist, undergoes a fit check of her Sokol spacesuit March 29, 2011, at the Zvezda facility in Moscow. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Soyuz suits that will be required in the event of an emergency. Photo credit: NASA Photo / Houston Chronicle, Smiley N. Pool

Managers from NASA, Roscosmos, RSC-Energia and other related agencies answer reporters questions during a Soyuz post-docking press conference at the Russian mission Control Center in Korolev, Russia on Saturday March 28, 2009. The Soyuz TMA-14 docked to the International Space Station carrying Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

Russian Orthodox Priest, Vladyka Feofan speaks during a Soyuz post-docking press conference at the Russian mission Control Center in Korolev, Russia on Saturday March 28, 2009. The Soyuz TMA-14 docked to the International Space Station carrying Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

Helen Conijn, fiancée of European Space Agency astronaut Andre Kuipers of the Netherlands, far right, joins Renita Fincke, second from right, wife of Expedition 9 Flight Engineer and NASA International Space Station Science Officer Michael Fincke, along with family members at the Russian Mission Control Center outside Moscow, Wednesday, April 21, 2004 to view the docking of the Soyuz capsule to the International Space Station that brought Kuipers, Fincke and Expedition 9 Commander Gennady Padalka to the complex following their launch Monday from Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

View of the Flight Control Room at the Russian Mission Control Center in Korolev, Russia, located on the outskirts of Moscow, Wednesday, April 21, 2004. Photo Credit: (NASA/Bill Ingalls)

Vladimir Solovyov, Chief Flight Director, MCC-M, answers reporters questions during a Soyuz post-docking press conference at the Russian mission Control Center in Korolev, Russia on Saturday March 28, 2009. The Soyuz TMA-14 docked to the International Space Station carrying Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

JSC2011-E-040290 (27 March 2011) --- Moscow stretches out in all directions as seen from a commercial flight carrying NASA astronauts Doug Hurley, STS-135 pilot, and Rex Walheim, mission specialist, to Moscow, Russia on March 27, 2011. The crew of the final shuttle mission traveled to Moscow to be fitted for Russian Sokol spacesuits which would be required in the event of an emergency. If the shuttle is unable to return to Earth, the crew will remain on the International Space Station and return on a staggered basis in the course of a year on scheduled Soyuz flights to the station. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

NASA Deputy Administrator Fred Gregory, right, and Nikolai Moiseev, Deputy General-Director of the Russian Federal Space Agency, center, share a light-hearted moment at the Russian Mission Control Center outside Moscow, Wednesday, April 21, 2004, following the successful docking of a Russian Soyuz spacecraft to the International Space Station. The Soyuz brought the new Expedition 9 crew and a European Space Agency researcher to the Station following their launch from the Baikonur Cosmodrome in Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

JSC2011-E-040325 (30 March 2011) --- NASA astronaut Doug Hurley, STS-135 pilot, waits in a pressure chamber before a test of his Sokol spacesuit at the Zvezda facility in Moscow March 30, 2011. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian spacesuits which would be required in the event of an emergency. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

NASA astronaut Chris Ferguson undergoes a fit check of his Sokol space suit at the Zvezda facility on Tuesday, March 29, 2011, in Moscow. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Soyuz suits that will be required in the event of an emergency. ( NASA Photo / Houston Chronicle, Smiley N. Pool )

12-year-old Anna Chibiskova of Moscow speaks during the Soyuz post-docking press conference at the Russian mission Control Center in Korolev, Russia on Saturday March 28, 2009. Chibiskova was the winner of an International logo design contest for the Expedition 19 mission. Stas Pyatkin, (not pictured) from the Uglegorsk Amur region, won third place and 12-year-old Keytlin Riley (not pictured) from New York won second place. Photo Credit: (NASA/Bill Ingalls)

Mike Hawes, NASA's Acting Associate Administrator, left, looks on as Kirk Shireman, NASA's deputy ISS program manager, answers reporters questions during a Soyuz post-docking press conference at the Russian Mission Control Center in Korolev, Russia on Saturday March 28, 2009. The Soyuz TMA-14 docked to the International Space Station carrying Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

JSC2011-E-040302 (28 March 2011) --- NASA astronaut Rex Walheim's name is seen in both English and Russian on a "Penguin" suit during a suit fit check at the Zvezda facility in Moscow on March 28, 2011. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Sokol suits which would be required in the event of an emergency. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

JSC2011-E-040319 (29 March 2011) --- NASA astronaut Chris Ferguson, STS-135 commander, undergoes a fit check of his Sokol spacesuit at the Zvezda facility in Moscow, Russia on March 29, 2011. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Sokol suits which would be required in the event of an emergency. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

Michelle Barratt wishes her husband, NASA Astronaut Michael Barratt, a happy wedding anniversary via phone to the International Space Station from the Russian Mission Control Center, Korolev, Russia, Saturday, March 28, 2009. The Soyuz TMA-14 spacecraft docked to the International Space Station and delivered Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

JSC2011-E-040298 (28 March 2011) --- NASA astronaut Rex Walheim, STS-135 mission specialist, undergoes a fit check of his Sokol spacesuit at the Zvezda facility in Moscow on March 28, 2011. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian suits would be required in the event of an emergency. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

Michelle Barratt, 3rd from left, claps as she watches her husband, NASA Astronaut Mike Barratt, enter the International Space Station live on TV from the Russia Mission Control Center in Korolev, Russia, Saturday, March 28, 2009. The Soyuz TMA-14 docked to the International Space Station carrying Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

The Expedition 8 and 9 crews and European Space Agency astronaut Andre Kuipers of the Netherlands are viewed on the front screen of the Flight Control Room at the Russian Mission Control Center outside Moscow, Wednesday, April 21, 2004, in a televised welcoming ceremony following their docking to the International Space Station in a Russian Soyuz spacecraft. Under the televised view of the two crews is the insignia of the Expedition 9 crew, consisting of commander Gennady Padalka and Flight Engineer and NASA International Space Station Science Officer Michael Fincke, who will spend six months on the Station. Photo Credit: (NASA/Bill Ingalls)

JSC2011-E-040299 (28 March 2011) --- NASA astronaut Rex Walheim, STS-135 mission specialist, undergoes a fit check of his Sokol suit at the Zvezda facility in Moscow on March 28, 2011. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Sokol spacesuits which would be required in the event of an emergency. Walheim's name appears first in English and then in Russian on his suit. The order is reversed on the suits of Russian cosmonauts. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

JSC2011-E-040324 (30 March 2011) --- NASA astronaut Doug Hurley, STS-135 pilot, waits in a pressure chamber before a test of his Russian Sokol spacesuit at the Zvezda facility in Moscow on March 30, 2011. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Sokol suits which would be required in the event of an emergency. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

View from the balcony of the Russian Mission Control Center in Korolev, Russia moments before the Soyuz TMA-14 docks to the International Space Station on Saturday, March 28, 2009. A view of the International Space Station from Soyuz onboard cameras is visible in the upper display. Photo Credit: (NASA/Bill Ingalls)

Vladimir Solovyov, Chief Flight Director, MCC-M, answers reporters questions during a Soyuz post-docking press conference at the Russian mission Control Center in Korolev, Russia on Saturday March 28, 2009. The Soyuz TMA-14 docked to the International Space Station carrying Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

Helen Conijn, fiancée of European Space Agency astronaut Andre Kuipers of the Netherlands, far right, joins Renita Fincke, second from right, wife of Expedition 9 Flight Engineer and NASA International Space Station Science Officer Michael Fincke, along with family members at the Russian Mission Control Center outside Moscow, Wednesday, April 21, 2004 to view the docking of the Soyuz capsule to the International Space Station that brought Kuipers, Fincke and Expedition 9 Commander Gennady Padalka to the complex following their launch Monday from Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Space suit designer Oleg Gerasimenko shares some tips on the Sokol suit with NASA astronaut Rex Walheim during a fit check at the Zvezda facility on Monday, March 28, 2011, in Moscow. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Soyuz suits that will be required in the event of an emergency. ( NASA Photo / Houston Chronicle, Smiley N. Pool )

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 in Korolev, outside Moscow Oct. 12, 2007. Expedition 16 Commander Peggy Whitson (bottom right), Soyuz Commander and Flight Engineer Yuri Malenchenko (bottom center) and Malaysian Spaceflight Participant Sheikh Muszaphar Shukor (bottom left) docked their Soyuz TMA-11 spacecraft to the station at 10:50 a.m. EDT Oct. 12, 2007. From top left to right, Expedition 15 Commander Fyodor Yurchikhim and Flight Engineers Oleg Kotov and Clay Anderson welcomed the new crew aboard the station when the hatches were opened at 12:22 p.m. EDT. Both crews fill work together for about nine days before Yurchikhin, Kotov and Shukor depart in their Soyuz TMA-10 spacecraft. Photo credit: NASA/Bill Ingalls

View from the balcony of the Russian Mission Control Center in Korolev, Russia moments before the Soyuz TMA-14 docks to the International Space Station on Saturday, March 28, 2009. A view of the International Space Station from Soyuz onboard cameras is visible in the upper right display. Photo Credit: (NASA/Bill Ingalls)

The crews of Expedition 18 and 19 are seen on a large TV screen in the Russian Mission Control Center in Korolev, Russia, Saturday, March 28, 2009 shortly after the Soyuz TMA-14 spacecraft docked to the International Space Station and delivered Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

JSC2011-E-040332 (30 March 2011) --- NASA astronauts Rex Walheim and Chris Ferguson visit Red Square in Moscow on March 30, 2011. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Soyuz suits which would be required in the event of an emergency. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

JSC2011-E-040330 (30 March 2011) --- NASA astronaut Chris Ferguson (foreground), STS-135 commander, visits Red Square in Moscow on March 30, 2011. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Sokol suits which would be required in the event of an emergency. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

Michelle Barratt, right, prepares to talk on the phone to her husband onboard the International Space Station from the Russian Mission Control Center, Korolev, Russia, Saturday, March 28, 2009. The Soyuz TMA-14 spacecraft docked to the International Space Station and delivered Expedition 19 Commander Gennady I. Padalka, Flight Engineer Michael R. Barratt and Spaceflight Participant Charles Simonyi. Photo Credit: (NASA/Bill Ingalls)

NASA Deputy Administrator Fred Gregory, left, joins Russian Federal Space Agency Deputy General-Director Nikolai Moiseev, Wednesday, April 21, 2004, at the Russian Mission Control Center outside Moscow to view the docking of the Expedition 9 crew to the International Space Station in a Russian Soyuz spacecraft. Photo Credit: (NASA/Bill Ingalls)

A view of the outside of the Russian Mission Control Center in Korolev, Russia, located on the outskirts of Moscow, Wednesday, April 21, 2004. Photo Credit: (NASA/Bill Ingalls)

European Space Agency astronaut Roberto Vittori, of Italy, waves to well-wishers upon departure from the Gagarin Cosmonaut Training Center training base, Saturday, April 9, 2005, in Star City, Russia. Vittori will spend eight days on the Station under a commercial contract between ESA and the Russian Federal Space Agency. Photo Credit: (NASA/Bill Ingalls)

May 6, 2003. Star City, Russia. Expedition Six Commander Ken Bowersox speaks at a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. Photo Credit: "NASA/Bill Ingalls"

May 6, 2003. Star City, Russia. Expedition Six NASA ISS Science Officer Don Pettit speaks during a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. Photo Credit: "NASA/Bill Ingalls"

The crew return bus pulls away from the Gargarin Cosmonaut Training Center's airplane in Star City, Russia. The Soyuz capsule carrying Expedition 9 Flight Engineer Michael Fincke, Expedition 9 Commander Gennady Padalka and Russian Space Forces cosmonaut Yuri Shargin landed approximately 85 kilometers northeast of Arkalyk in northern Kazakhstan, Sunday, October 24, 2004. Photo Credit: (NASA/Bill Ingalls)

October 12, 2003, Star City, Russia. Expedition 8 Commander Michael Foale (right) and Expedition 8 Soyuz Commander and Flight Engineer Alexander Kaleri (center) are joined by European Space Agency Astronaut Pedro Duque of Spain at the Gagarin Cosmonaut Training Center outside Moscow to pose for pictures prior to their departure for the Baikonur Cosmodrome in Kazakhstan for the October 18th launch on a Soyuz rocket to the International Space Station. Photo Credit: "NASA/Bill Ingalls"

Renita Fincke, left, watches her husband, NASA astronaut Michael Fincke and Expedition 9 Flight Engineer depart from the crew bus while holding her 4 month-old baby Tarali Fincke, Sunday, October 24, 2004 in Star City, Russia. Astronaut Terry Virts helps by holding Chandra Fincke. Photo Credit: (NASA/Bill Ingalls)

Expedition 10 Flight Engineer Salizhan Sharipov, far right, Expedition 10 Commander Leroy Chiao and European Space Agency astronaut Roberto Vittori, third from right, are treated to a traditional salt and bread welcoming at Star City, Russia, Monday, April 25, 2005. The crew brought their Soyuz TMA-5 capsule to a pre-dawn landing April 25 northeast of the town of Arkalyk in Kazakhstan to wrap up a six-month mission aboard the International Space Station for Chiao and Sharipov, and a ten-day mission for Vittori, who flew under a commercial contract between ESA and the Russian Federal Space Agency. Photo Credit: (NASA/Bill Ingalls)

May 6, 2003. Star City, Russia. Expedition Six Flight Engineer Nikolai Budarin (L), Commander Ken Bowersox (C), and NASA ISS Science Officer Don Pettit (R) pose for photos at a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. Photo Credit: "NASA/Bill Ingalls"

Expedition 10 Commander Leroy Chiao, left, is greeted by his wife after arriving in Star City, Russia from Kazakhstan, Monday, April 25, 2005. The Expedition 10 crew brought their Soyuz TMA-5 capsule to a pre-dawn landing April 25 northeast of the town of Arkalyk to wrap up a six-month mission aboard the International Space Station for Chiao and Sharipov, and a ten-day mission for Vittori, who flew under a commercial contract between ESA and the Russian Federal Space Agency. Photo Credit: (NASA/Bill Ingalls)

Renita Fincke follows the arrival of her husband, NASA astronaut Michael Fincke, to the Gagarin Cosmonaut Training Center while holding their 4 month-old baby Tarali Fincke, Sunday, October 24, 2004, in Star City, Russia. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 Soyuz Commander Mikhail Tyurin of Roscosmos, second from left, is welcomed home by family, friends, and government officials at the Chkalovsky airport outside Star City, Russia, Wednesday, May 14, 2014. Tyurin, Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Flight Engineer Rick Mastracchio of NASA landed in their Soyuz TMA-11M spacecraft earlier in the day near the town of Zhezkazgan, Kazakhstan. Wakata, Tyurin and Mastracchio returned to Earth after more than six months onboard the International Space Station where they served as members of the Expedition 38 and 39 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 11 Commander Sergei Krikalev, left, Flight Engineer John Phillips bid farewell as they depart the Gagarin Cosmonaut Training Center training base, Saturday, April 9, 2005, in Star City, Russia to travel to the Baikonur Cosmodrome in Kazakhstan for final pre-launch preparations. Krikalev, Phillips along with European Space Agency Astronaut Roberto Vittori will launch April 15 on a Soyuz TMA-6 spacecraft to the International Space Station. Krikalev and Phillips will spend six months in space and greet the first Shuttle crew to fly in more than two years when it arrives at the Station, while Vittori spends eight days on the Station under a commercial contract between ESA and the Russian Federal Space Agency. Photo Credit: (NASA/Bill Ingalls)

Expedition 10 Commander Leroy Chiao, far left, Flight Engineer Salizhan Sharipov and European Space Agency astronaut Roberto Vittori, third from left, are welcomed home by officials at Star City, Russia, Monday, April 25, 2005. The crew brought their Soyuz TMA-5 capsule to a pre-dawn landing April 25 northeast of the town of Arkalyk to wrap up a six-month mission aboard the International Space Station for Chiao and Sharipov, and a ten-day mission for Vittori, who flew under a commercial contract between ESA and the Russian Federal Space Agency. Photo Credit: (NASA/Bill Ingalls)

Expedition 9 Commander Gennady Padalka, center, and Expedition 9 Flight Engineer Michael Fincke, background, exit the Gargarin Cosmonaut Training Center's airplane to an awaiting crowd of officials and family members after their flight from Kustanay, Kazakhstan, Sunday, October 24, 2004. Photo Credit: (NASA/Bill Ingalls)

Expedition 6 Commander Ken Bowersox, left and NASA International Space Station Science Officer Don Pettit speak during a press conference at the Gagarin Cosmonaut Training Center in Star City, Russia, Thursday, May 6, 2003. Photo Credit: (NASA/Bill Ingalls)

Expedition 11 Commander Sergei Krikalev, center, Flight Engineer John Phillips, left, and European Space Agency Astronaut Roberto Vittori, of Italy, answer questions from the media prior to their departure from the Gagarin Cosmonaut Training Center training base, Saturday, April 9, 2005, in Star City, Russia. The trio traveled to the Baikonur Cosmodrome in Kazakhstan for final pre-launch preparations. Krikalev, Phillips and Vittori will launch April 15 on a Soyuz TMA-6 spacecraft to the International Space Station. Krikalev and Phillips will spend six months in space and greet the first Shuttle crew to fly in more than two years when it arrives at the Station, while Vittori spends eight days on the Station under a commercial contract between ESA and the Russian Federal Space Agency. Photo Credit: (NASA/Bill Ingalls)

Expedition 11 Commander Sergei Krikalev, center, Flight Engineer John Phillips, left, and European Space Agency Astronaut Roberto Vittori, of Italy, answer questions from the media prior to their departure from the Gagarin Cosmonaut Training Center training base, Saturday, April 9, 2005, in Star City, Russia. The trio traveled to the Baikonur Cosmodrome in Kazakhstan for final pre-launch preparations. Krikalev, Phillips and Vittori will launch April 15 on a Soyuz TMA-6 spacecraft to the International Space Station. Krikalev and Phillips will spend six months in space and greet the first Shuttle crew to fly in more than two years when it arrives at the Station, while Vittori spends eight days on the Station under a commercial contract between ESA and the Russian Federal Space Agency. Photo Credit: (NASA/Bill Ingalls)

Family, friends, and government officials wait to welcome home Expedition 39 Soyuz Commander Mikhail Tyurin of Roscosmos at the Chkalovsky airport outside Star City, Russia, Wednesday, May 14, 2014. Tyurin, Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Flight Engineer Rick Mastracchio of NASA landed in their Soyuz TMA-11M spacecraft earlier in the day near the town of Zhezkazgan, Kazakhstan. Wakata, Tyurin and Mastracchio returned to Earth after more than six months onboard the International Space Station where they served as members of the Expedition 38 and 39 crews. Photo Credit: (NASA/Bill Ingalls)

May 6, 2003. Star City, Russia. Expedition Six Flight Engineer Nikolai Budarin speaks during a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. Photo Credit: "NASA/Bill Ingalls"

May 6, 2003. Star City, Russia. Expedition Six Flight Engineer Nikolai Budarin (L), Commander Ken Bowersox (C), and NASA ISS Science Officer Don Pettit (R) pose for photos at a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. Photo Credit: "NASA/Bill Ingalls"

Expedition 11 Commander Sergei Krikalev, center, accompanied by Flight Engineer John Phillips, left, and European Space Agency Astronaut Roberto Vittori of Italy are seen at the Gagarin Cosmonaut Training Center training base, Saturday, April 9, 2005, in Star City, Russia, prior to their departure to the Baikonur Cosmodrome in Kazakhstan for final pre-launch preparations. Krikalev, Phillips and Vittori will launch April 15 on a Soyuz TMA-6 spacecraft to the International Space Station. Krikalev and Phillips will spend six months in space and greet the first Shuttle crew to fly in more than two years when it arrives at the Station, while Vittori spends eight days on the Station under a commercial contract between ESA and the Russian Federal Space Agency. Photo Credit: (NASA/Bill Ingalls)

Expedition 6 Flight Engineer Nikolai Budarin, left, Commander Ken Bowersox and International Space Station Science Officer Don Pettit, right, pose for photos at a press conference at the Gagarin Cosmonaut Training Center in Star City, Russia, Thursday, May 6, 2003. Photo Credit: (NASA/Bill Ingalls)

Flight Engineer Salizhan Sharipov, bottom left, Expedition 10 Commander Leroy Chiao and European Space Agency astronaut Roberto Vittori, top left, arrive in Star City, Russia, Monday, April 25, 2005, after thet brought their Soyuz TMA-5 capsule to a pre-dawn landing northeast of Arkalyk, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 30 Flight Engineers Anatoly Ivanishin, far left, and Anton Shkaplerov are welcomed home by colleagues and family in Star City, Russia on Saturday, April 28, 2012. Russian Cosmonauts Ivanishin, Shkaplerov and Expedition 30 Commander Daniel Burbank landed outside of Arkalyk, Kazakhstan earlier in the day from over five months onboard the International Space Station where they served as members of the Expedtion 29 and 30 crews. Photo Credit: (NASA/Carla Cioffi)

STAR CITY, RUSSIA - Russian Space Agency Director Yuri Koptev shakes hands with Expedition Six Commander Ken Bowersox, as Bowersox is also hugged by his wife Annie. The Expedition Six crew spent 161 days in space, 159 manning the International Space Station. Photo Credit: NASA/Bill Ingalls

European Space Agency astronaut Roberto Vittori, right, Expedition 10 Commander Leroy Chiao and Expedition 10 Flight Engineer Salizhan Sharipov, second from left, are welcomed home by well wishers at Star City, Russia, Monday, April 25, 2005. The crew brought their Soyuz TMA-5 capsule to a pre-dawn landing April 25 northeast of the town of Arkalyk in Kazakhstan to wrap up a six-month mission aboard the International Space Station for Chiao and Sharipov, and a ten-day mission for Vittori, who flew under a commercial contract between ESA and the Russian Federal Space Agency. Photo Credit: (NASA/Bill Ingalls)

May 6, 2003. Star City, Russia. Expedition Six Flight Engineer Nikolai Budarin (L), Commander Ken Bowersox (C), and NASA ISS Science Officer Don Pettit (R) answer questions during a Press Conference at the Gagarin Cosmonaut Training Center in Star City, Russia. Photo Credit: "NASA/Bill Ingalls"

STS-91 Mission Specialist Wendy B. Lawrence is ready to go as her flight suit gets a final checkout in the Operations and Checkout (O&C) Building. The fitting takes place prior to the crew walkout and transport to Launch Pad 39A. She is a commander in the Navy and is on her third Shuttle mission and second trip to Mir. Lawrence has served as Director of Operations for NASA at the Gagarin Cosmonaut Training Center in Star City, Russia, and has also trained for a Shuttle-Mir flight. Lawrence will also on the flight deck during ascent and re-entry as flight engineer. In this capacity, she will be on-hand to support the commander and copilot in these critical parts of the flight. She will also have primary responsibility for all Shuttle-Mir transfer operations and science experiments in the middeck crew cabin area. STS-91 is scheduled to be launched on June 2 with a launch window opening around 6:10 p.m. EDT. The mission will feature the ninth and final Shuttle docking with the Russian space station Mir, the first Mir docking for Discovery, the first on-orbit test of the Alpha Magnetic Spectrometer (AMS), and the first flight of the new Space Shuttle super lightweight external tank. Astronaut Andrew S. W. Thomas will return to Earth as a STS91 crew member after living more than four months aboard Mir

Expedition 30 Flight Engineer Anatoly Ivanishin is welcomed home by colleagues and family in Star City, Russia on Saturday, April 28, 2012. Russian Cosmonaut Ivanishin, Expedition 30 Commander Daniel Burbank, and Russian Cosmonaut Anton Shkaplerov landed outside of Arkalyk, Kazakhstan earlier in the day from over five months onboard the International Space Station where they served as members of the Expedtion 29 and 30 crews. Photo Credit: (NASA/Carla Cioffi)

Expedition 6 Flight Engineer Nikolai Budarin, left, Commander Ken Bowersox and International Space Station Science Officer Don Pettit, right, pose for photos at a press conference at the Gagarin Cosmonaut Training Center in Star City, Russia, Thursday, May 6, 2003. Photo Credit: (NASA/Bill Ingalls)

Expedition 6 International Space Station Science Officer Don Pettit speaks during a press conference at the Gagarin Cosmonaut Training Center in Star City, Russia, Thursday, May 6, 2003. Photo Credit: (NASA/Bill Ingalls)

Members of the 11th expedition to the International Space Station, astronaut John Phillips, top left, and cosmonaut Sergei Krikalev, front, arrive at Star City, Russia, Tuesday, Oct. 11, 2005. The crew landed near Arlalyk, Kazakhstan after a six-month mission in orbit. Along with American businessman Greg Olsen, who visited the station for more than a week, Phillips and Krikalev returned to Earth aboard a Russian Soyuz spacecraft. Photo Credit: (NASA/Bill Ingalls)

Expedition 6 Flight Engineer Nikolai Budarin, left, Commander Ken Bowersox and NASA International Space Station Science Officer Don Pettit, right, answer questions during a press conference at the Gagarin Cosmonaut Training Center in Star City, Russia, Thursday, May 6, 2003. Photo Credit: (NASA/Bill Ingalls)

Star City, Russia - Expedition 8 Commander Michael Foale (right) and Expedition 8 Soyuz Commander and Flight Engineer Alexander Kaleri (center) are joined by European Space Agency Astronaut Pedro Duque of Spain at the Gagarin Cosmonaut Training Center outside Moscow to pose for pictures prior to their departure for the Baikonur Cosmodrome in Kazakhstan for the October 18th launch on a Soyuz rocket to the International Space Station. Photo Credit: "NASA/Bill Ingalls"

Expedition 10 Flight Engineer Salizhan Sharipov, on bus, looks out at well wishers after arriving back at Star City, Russia from Kazakhstan, Monday, April 25, 2005. Expedition 10 Commander Leroy Chiao, Flight Engineer Salizhan Sharipov and European Space Agency astronaut Roberto Vittori brought their Soyuz TMA-5 capsule to a pre-dawn landing April 25 northeast of the town of Arkalyk to wrap up a six-month mission aboard the International Space Station for Chiao and Sharipov, and a ten-day mission for Vittori, who flew under a commercial contract between ESA and the Russian Federal Space Agency. Photo Credit: (NASA/Bill Ingalls)

Renita Fincke, right, awaits the arrival of her husband NASA astronaut Michael Fincke, while holding their 4 month-old baby Tarali, Sunday, October 24, 2004, in Star City, Russia. Astronaut Terry Virts, Center helps by holding 2 year-old Chandra Fincke. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 Soyuz Commander Mikhail Tyurin of Roscosmos, left, departs a plane to a crowd of family, friends, and government officials at the Chkalovsky airport outside Star City, Russia, Wednesday, May 14, 2014. Tyurin, Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Flight Engineer Rick Mastracchio of NASA landed in their Soyuz TMA-11M spacecraft earlier in the day near the town of Zhezkazgan, Kazakhstan. Wakata, Tyurin and Mastracchio returned to Earth after more than six months onboard the International Space Station where they served as members of the Expedition 38 and 39 crews. Photo Credit: (NASA/Bill Ingalls)

STAR CITY, RUSSIA - NASA Administrator Sean O'Keefe (left) visits with Expedition Six Commander Ken Bowersox (right) and his brother (center). The Expedition Six crew spent 161 days in space, 159 manning the International Space Station. Photo Credit: NASA/Bill Ingalls

Expedition 9 Flight Engineer Michael Fincke, lower left, greets his wife and children for the first time in six months after exiting the Gargarin Cosmonaut Training Center's airplane in Star City, Russia, Sunday October 24, 2004. Photo Credit: (NASA/Bill Ingalls)