Official portrait of ESA astronaut Alexander Gerst in an EMU suit. Photo Date: June 3, 2013. Location: Building 8, Room 183 - Photo Studio. Photographer: Robert Markowitz

JSC2013-E-059969 (3 June 2013) --- Official portrait of European Space Agency astronaut Alexander Gerst in an Extravehicular Mobility Unit (EMU) spacesuit. Photo credit: NASA

iss056e055758 (June 29, 2018) --- The Soyuz MS-09 spacecraft is pictured docked to the Rassvet module of the International Space Station's Russian segment. The Soyuz MS-09 launched Expedition 56-57 crew members Serena Auñón-Chancellor, Alexander Gerst and Sergey Prokopyev to the station on June 6, 2018 and docked on June 8.

Expedition 40 Flight Engineer Alexander Gerst, of the European Space Agency, ESA, left, Soyuz Commander Maxim Suraev, of the Russian Federal Space Agency, Roscosmos, center, and Flight Engineer Reid Wiseman of NASA, right, are seen as they depart the Cosmonaut Hotel on Wednesday, May 28, 2014 in Baikonur, Kazakhstan. Suraev, Gerst, and Wiseman will launch in their Soyuz TMA-13M spacecraft to the International Space Station to begin a five and a half month mission. Photo Credit: (NASA/Joel Kowsky)

Alexander Gerst of ESA (European Space Agency) is carried to a medical tent shortly after he, Sergey Prokopyev of Roscosmos, and Serena Auñón-Chancellor of NASA landed in their Soyuz MS-09 spacecraft near the town of Zhezkazgan, Kazakhstan on Thursday, Dec. 20, 2018. Auñón-Chancellor, Gerst, and Prokopyev are returning after 197 days in space where they served as members of the Expedition 56 and 57 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Alexander Gerst of ESA (European Space Agency) is carried to a medical tent shortly after he, Sergey Prokopyev of Roscosmos, and Serena Auñón-Chancellor of NASA landed in their Soyuz MS-09 spacecraft near the town of Zhezkazgan, Kazakhstan on Thursday, Dec. 20, 2018. Auñón-Chancellor, Gerst, and Prokopyev are returning after 197 days in space where they served as members of the Expedition 56 and 57 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Alexander Gerst of ESA (European Space Agency) is carried to a medical tent shortly after he, Sergey Prokopyev of Roscosmos, and Serena Auñón-Chancellor of NASA landed in their Soyuz MS-09 spacecraft near the town of Zhezkazgan, Kazakhstan on Thursday, Dec. 20, 2018. Auñón-Chancellor, Gerst, and Prokopyev are returning after 197 days in space where they served as members of the Expedition 56 and 57 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, is seen during a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA will launch aboard their Soyuz TMA-13M spacecraft on their mission to the International Space Station in the early hours of May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, speaks during a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA will launch aboard their Soyuz TMA-13M spacecraft on their mission to the International Space Station in the early hours of May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, performs the traditional door signing at the Cosmonaut Hotel prior to departing the hotel for launch in a Soyuz rocket with fellow crew mates, Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA, Wednesday, May 28, 2014 in Baikonur, Kazakhstan. Suraev, Gerst, and Wiseman will launch in their Soyuz TMA-13M spacecraft to the International Space Station to begin a five and a half month mission. Photo Credit (NASA/Joel Kowsky)

Expedition 41 Flight Engineer Alexander Gerst of the European Space Agency (ESA) rests in a chair outside the Soyuz Capsule just minutes after he and Expedition 41 Commander Max Suraev of the Russian Federal Space Agency (Roscosmos), and NASA Flight Engineer Reid Wiseman landed in their Soyuz TMA-13M capsule in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 40 Flight Engineer Reid Wiseman of NASA, performs the traditional door signing at the Cosmonaut Hotel prior to departing the hotel for launch in a Soyuz rocket with fellow crew mates, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Alexander Gerst of the European Space Agency, ESA, Wednesday, May 28, 2014, in Baikonur, Kazakhstan. Wiseman, Suraev, and Gerst will launch in their Soyuz TMA-13M spacecraft to the International Space Station to begin a five and a half month mission. Photo Credit (NASA/Joel Kowsky)

Expedition 41 Flight Engineer Alexander Gerst of the European Space Agency (ESA) is carried in a chair to a medical tent after he and Expedition 41 Commander Max Suraev of the Russian Federal Space Agency (Roscosmos), and NASA Flight Engineer Reid Wiseman landed in their Soyuz TMA-13M capsule in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) is seen in quarantine, behind glass, during a press conference, Tuesday, June 5, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Gerst, Soyuz Commander Sergey Prokopyev of Roscosmos, and flight engineer Serena Auñón-Chancellor of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) is seen during the State Commission meeting to approve the Soyuz launch of Expedition 56 to the International Space Station, Tuesday, June 5, 2018 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Gerst, Soyuz Commander Sergey Prokopyev of Roscosmos, and Serena Auñón-Chancellor of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) is seen in quarantine, behind glass, during a press conference, Tuesday, June 5, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Gerst, Soyuz Commander Sergey Prokopyev of Roscosmos, and flight engineer Serena Auñón-Chancellor of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) is seen in quarantine, behind glass, during a press conference, Tuesday, June 5, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Gerst, Soyuz Commander Sergey Prokopyev of Roscosmos, and flight engineer Serena Auñón-Chancellor of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)

Alexander Gerst of ESA (European Space Agency) is helped out of the Soyuz MS-09 spacecraft just minutes after he, Serena Auñón-Chancellor of NASA, and Sergey Prokopyev of Roscosmos, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Dec. 20, 2018. Auñón-Chancellor, Gerst, and Prokopyev are returning after 197 days in space where they served as members of the Expedition 56 and 57 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 57 crew member Alexander Gerst of ESA (European Space Agency) is seen during a welcome ceremony at the Zhezkazgan, Kazakhstan airport shortly after he landed in a Soyuz MS-09 spacecraft with Sergey Prokopyev of Roscosmos, and Serena Auñón-Chancellor of NASA on Thursday, Dec. 20, 2018. Auñón-Chancellor, Gerst, and Prokopyev are returning after 197 days in space where they served as members of the Expedition 56 and 57 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) performs the traditional door signing at the Cosmonaut Hotel prior to departing the hotel for launch on a Soyuz rocket with fellow crewmates Serena Auñón-Chancellor of NASA and Sergey Prokopyev of Roscosmos, Wednesday, June 6, 2018 in Baikonur, Kazakhstan. Gerst, Auñón-Chancellor, and Prokopyev will launch in their Soyuz MS-09 spacecraft to the International Space Station to being a six month mission. Photo Credit: (NASA/Joel Kowsky)

Expedition 57 crew members Sergey Prokopyev of Roscosmos, left, and Alexander Gerst of ESA (European Space Agency) attend a welcome ceremony at the Zhezkazgan, Kazakhstan airport after they landed in their Soyuz MS-09 spacecraft with Serena Auñón-Chancellor of NASA on Thursday, Dec. 20, 2018. Auñón-Chancellor, Gerst, and Prokopyev are returning after 197 days in space where they served as members of the Expedition 56 and 57 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 57 crew members Sergey Prokopyev of Roscosmos and Alexander Gerst of ESA (European Space Agency) attend a welcome ceremony at the Zhezkazgan, Kazakhstan airport after they landed in their Soyuz MS-09 spacecraft with Serena Auñón-Chancellor of NASA on Thursday, Dec. 20, 2018. Auñón-Chancellor, Gerst, and Prokopyev are returning after 197 days in space where they served as members of the Expedition 56 and 57 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 38 backup crew member Alexander Gerst of the European Space Agency is seen in quarantine, behind glass, during the final press conference held a day ahead of the launch of Expedition 38 prime crew members; Flight Engineer Koichi Wakata of the Japan Aerospace Exploration Agency, Soyuz Commander Mikhail Tyurin of Roscosmos, and, Flight Engineer Rick Mastracchio of NASA, to the International Space Station, Wednesday, Nov. 6, 2013 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Soyuz Commander Sergey Prokopyev of Roscosmos, left, and flight engineer Alexander Gerst of ESA (European Space Agency) are seen during a press conference, Tuesday, June 5, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 56 Soyuz Commander Sergey Prokopyev of Roscosmos, flight engineer Serena Auñón-Chancellor of NASA, and flight engineer Alexander Gerst of ESA (European Space Agency) are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA is seen as he prepares to have his Russian Sokol suit pressure checked in preparation for launch aboard the Soyuz MS-09 spacecraft, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Gerst, Soyuz Commander Sergey Prokopyev of Roscosmos, and flight engineer Serena Auñón-Chancellor of NASA launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 41 Flight Engineer Alexander Gerst of the European Space Agency (ESA) is carried in a chair to a medical tent after he and Expedition 41 Commander Max Suraev of the Russian Federal Space Agency (Roscosmos), and NASA Flight Engineer Reid Wiseman landed in their Soyuz TMA-13M capsule in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) waves farewell to family and friends as he and fellow crewmates flight engineer Serena Auñón-Chancellor of NASA and Soyuz Commander Sergey Prokopyev of Roscosmos depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Wednesday, June 6, 2018 in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) has his Russian Sokol suit pressure checked in preparation for launch aboard the Soyuz MS-09 spacecraft, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Gerst, flight engineer Serena Auñón-Chancellor of NASA, and Soyuz Commander Sergey Prokopyev of Roscosmos launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) prepares to have his Russian Sokol suit pressure checked in preparation for launch aboard the Soyuz MS-09 spacecraft, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Gerst, flight engineer Serena Auñón-Chancellor of NASA, and Soyuz Commander Sergey Prokopyev of Roscosmos launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 41 Flight Engineer Alexander Gerst of the European Space Agency (ESA) rests in a chair outside the Soyuz Capsule just minutes after he and Expedition 41 Commander Max Suraev of the Russian Federal Space Agency (Roscosmos), and NASA Flight Engineer Reid Wiseman landed in their Soyuz TMA-13M capsule in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA waves farewell to family and friends as she and fellow crewmates flight engineer Alexander Gerst of ESA (European Space Agency) and Soyuz Commander Sergey Prokopyev of Roscosmos depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Wednesday, June 6, 2018 in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Joel Kowsky)

A woman in ceremonial Kazakh dress presents flowers to Expedition 41 Flight Engineer Alexander Gerst of the European Space Agency (ESA) at the Kustanay Airport after he and Expedition 41 Commander Max Suraev of the Russian Federal Space Agency (Roscosmos) and Flight Engineer Reid Wiseman of NASA landed in their Soyuz TMA-13M capsule in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 41 Flight Engineer Alexander Gerst of the European Space Agency (ESA) is helped out of the Soyuz Capsule just minutes after he and Expedition 41 Commander Max Suraev of the Russian Federal Space Agency (Roscosmos), and NASA Flight Engineer Reid Wiseman landed in their Soyuz TMA-13M capsule in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) prepares to have his Russian Sokol suit pressure checked in preparation for launch aboard the Soyuz MS-09 spacecraft, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Gerst, flight engineer Serena Auñón-Chancellor of NASA, and Soyuz Commander Sergey Prokopyev of Roscosmos launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency), top, flight engineer Serena Auñón-Chancellor of NASA, middle, and Soyuz Commander Sergey Prokopyev of Roscosmos, bottom, wave farewell prior to boarding the Soyuz MS-09 spacecraft for launch, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Gerst, Auñón-Chancellor, and Prokopyev will spend the next six months living and working aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) has his Russian Sokol suit pressure checked as he and fellow crewmates, Sergey Prokopyev of Roscosmos and Serena Auñón-Chancellor of NASA prepare for their Soyuz launch to the International Space Station, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket will send Auñón-Chancellor, Prokopyev, and Gerst on a six month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, Soyuz Commander Sergey Prokopyev of Roscosmos, center, and flight engineer Alexander Gerst of ESA (European Space Agency) are seen after donning their Russian Sokol suits as they prepare for their Soyuz launch to the International Space Station, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket will send Auñón-Chancellor, Prokopyev, and Gerst on a six month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 56 Soyuz Commander Sergey Prokopyev of Roscosmos, center, answers a question along with flight engineer Serena Auñón-Chancellor of NASA, left, and flight engineer Alexander Gerst of ESA (European Space Agency), right, during a press conference, Tuesday, June 5, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)

Matryoshka Dolls depicting Expedition 57 crew members Serena Auñón-Chancellor of NASA, left, Sergey Prokopyev of Roscosmos, center, and Alexander Gerst of ESA (European Space Agency) are seen during a welcome ceremony at the Zhezkazgan, Kazakhstan airport on Thursday, Dec. 20, 2018. Auñón-Chancellor, Gerst, and Prokopyev are returning after 197 days in space where they served as members of the Expedition 56 and 57 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) is seen as he waits to have his Russian Sokol suit pressure checked as he and fellow crewmates, Sergey Prokopyev of Roscosmos and Serena Auñón-Chancellor of NASA prepare for their Soyuz launch to the International Space Station, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket will send Auñón-Chancellor, Prokopyev, and Gerst on a six month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) is helped into his Russian Sokol suit as he and fellow crewmates, Serena Auñón-Chancellor of NASA and Sergey Prokopyev of Roscosmos prepare for their Soyuz launch to the International Space Station, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket will send Gerst, Auñón-Chancellor, and Prokopyev on a six month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 57 crew members Alexander Gerst of ESA (European Space Agency), left, Sergey Prokopyev of Roscosmos, center, and Serena Auñón-Chancellor of NASA sit in chairs outside the Soyuz MS-09 spacecraft after they landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Dec. 20, 2018. Auñón-Chancellor, Gerst, and Prokopyev are returning after 197 days in space where they served as members of the Expedition 56 and 57 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) is helped into his Russian Sokol suit as he and fellow crewmates, Sergey Prokopyev of Roscosmos and Serena Auñón-Chancellor of NASA prepare for their Soyuz launch to the International Space Station Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket will send Gerst, Auñón-Chancellor, and Prokopyev on a six month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, Soyuz Commander Sergey Prokopyev of Roscosmos, and flight engineer Alexander Gerst of ESA (European Space Agency) receive a blessing from a Russian Orthodox Priest at the Cosmonaut Hotel prior to departing the hotel for launch on a Soyuz rocket, Wednesday, June 6, 2018 in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst will launch in their Soyuz MS-09 spacecraft to the International Space Station to being a six month mission. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, Soyuz Commander Sergey Prokopyev of Roscosmos, center, and flight engineer Alexander Gerst of ESA (European Space Agency) pose for a picture following the completion of a press conference, Tuesday, June 5, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, Soyuz Commander Sergey Prokopyev of Roscosmos, center, and flight engineer Alexander Gerst of ESA (European Space Agency) are seen as they leave a press conference, Tuesday, June 5, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, answers a question during a press conference along with Soyuz Commander Sergey Prokopyev of Roscosmos, center, and flight engineer Alexander Gerst of ESA (European Space Agency), right, Tuesday, June 5, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, Soyuz Commander Sergey Prokopyev of Roscosmos, center, and flight engineer Alexander Gerst of ESA (European Space Agency) pose for a picture following the completion of a press conference, Tuesday, June 5, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency), top, flight engineer Serena Auñón-Chancellor of NASA, middle, and Soyuz Commander Sergey Prokopyev of Roscosmos, bottom, wave farewell prior to boarding the Soyuz MS-09 spacecraft for launch, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Gerst, Auñón-Chancellor, and Prokopyev will spend the next six months living and working aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 38 backup crew members Alexander Gerst of the European Space Agency, left, and, Russian cosmonaut Max Suraev, are seen in quarantine, behind glass, during the final press conference held a day ahead of the launch of Expedition 38 prime crew members; Flight Engineer Koichi Wakata of the Japan Aerospace Exploration Agency, Soyuz Commander Mikhail Tyurin of Roscosmos, and, Flight Engineer Rick Mastracchio of NASA, to the International Space Station, Wednesday, Nov. 6, 2013 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, speaks with his family after having his Russian Sokol suit pressure checked in preparation for his launch onboard the Soyuz TMA-13M spacecraft on Wednesday, May 28, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Suraev, Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA is scheduled to launch at 1:57 a.m. Kazakhstan Time on Thursday, May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, left, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, center, and Flight Engineer Reid Wiseman of NASA, left, are seen after having their Russian Sokol suits pressure checked in preparation for their launch onboard the Soyuz TMA-13M spacecraft on Wednesday, May 28, 2014 at the Baikonur Cosmodrome in Kazakhstan. The trio is set to launch on a six month mission to the International Space Station onboard the Soyuz TMA-13M spacecraft at 1:57 a.m. Kazakhstan time on Thursday, May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, left, and Flight Engineer Reid Wiseman of NASA, right, are seen as they talk with family members after having their Russian Sokol suit pressure checked in preparation for his launch onboard the Soyuz TMA-13M spacecraft on Wednesday, May 28, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Wiseman, Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Alexander Gerst of the European Space Agency, ESA, is scheduled to launch at 1:57 a.m. Kazakhstan time on Thursday, May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, left, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, center, and Flight Engineer Reid Wiseman of NASA, left, are seen together during a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Their mission to the International Space Station is set to launch May 29 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Flight Engineer Reid Wiseman waves as he is introduced during a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA will launch aboard their Soyuz TMA-13M spacecraft on their mission to the International Space Station in the early hours of May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, left, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, center, and Flight Engineer Reid Wiseman of NASA, right, wave to those gathered at the conclusion of a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch May 29 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, left, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, center, and Flight Engineer Reid Wiseman of NASA, left, hug each other during a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The trio will launch aboard their Soyuz TMA-13M spacecraft on their mission to the International Space Station in the early hours of May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, left, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, center, and Flight Engineer Reid Wiseman of NASA, right, pose for a picture at the conclusion of a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch May 29 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 backup Flight Engineer Terry Virts of NASA is seen during a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA will launch aboard their Soyuz TMA-13M spacecraft on their mission to the International Space Station in the early hours of May 29. Photo Credit: (NASA/Joel Kowsky)

A reflection of the audience can been seen in the quarantine glass as Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, left, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, center, and Flight Engineer Reid Wiseman of NASA, right, pose for a group picture at the conclusion of a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch May 29 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, left and Flight Engineer Reid Wiseman of NASA are seen after being helped into their Russian Sokol suit as the pair and fellow cremate, Flight Engineer Alexander Gerst of the European Space Agency, ESA, prepare for their Soyuz launch to the International Space Station, on Wednesday, May 28, 2014, in Baikonur, Kazakhstan. Launch of the Soyuz rocket will send Suraev, Gerst, and Wiseman on a five and a half month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Irina Peshkova)

William Gerstenmaier, NASA Associate Administrator for Human Exploration and Operations, left, is seen speaking with Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, back right, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, center right, and Flight Engineer Reid Wiseman of NASA, front right, following Russian Sokol suit pressure checks in preparation for their launch onboard the Soyuz TMA-13M spacecraft, Wednesday, May 28, 2014 at the Baikonur Cosmodrome in Kazakhstan. Gerst, Suraev, and Wiseman will spend five and a half months living and working on board the International Space Station. Photo Credit: (NASA/Victor Zelentsov)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, Soyuz Commander Sergey Prokopyev of Roscosmos, center, and flight engineer Alexander Gerst of ESA (European Space Agency), right, are seen as they depart Building 254 and report to mission managers a few hours before their launch, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Victor Zelentsov)

Expedition 41 light Engineer Alexander Gerst of the European Space Agency (ESA), left, Commander Max Suraev of the Russian Federal Space Agency (Roscosmos), center, and NASA Flight Engineer Reid Wiseman, sit in chairs outside the Soyuz TMA-13M capsule just minutes after they landed in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, is helped into his Russian Sokol suit as he and fellow cremates, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Reid Wiseman of NASA prepare for their Soyuz launch to the International Space Station, on Wednesday, May 28, 2014, in Baikonur, Kazakhstan. Launch of the Soyuz rocket will send Gerst, Suraev, and Wiseman on a five and a half month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Irina Peshkova)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, is seen after having his Russian Sokol suit pressure checked in preparation for his launch onboard the Soyuz TMA-13M spacecraft on Wednesday, May 28, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Gerst, Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Reid Wiseman of NASA is scheduled to launch at 1:57 a.m. Kazakhstan time on Thursday, May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, is seen before his Russian Sokol suit is pressure checked in preparation for his launch onboard the Soyuz TMA-13M spacecraft on Wednesday, May 28, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Gerst, Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Reid Wiseman of NASA is scheduled to launch at 1:57 a.m. Kazakhstan time on Thursday, May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, Soyuz Commander Sergey Prokopyev of Roscosmos, center, and flight engineer Alexander Gerst of ESA (European Space Agency), right, are seen as depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Wednesday, June 6, 2018 in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Victor Zelentsov)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, performs the traditional door signing at the Cosmonaut Hotel prior to departing the hotel for launch in a Soyuz rocket with fellow crew mates, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Reid Wiseman of NASA, Wednesday, May 28, 2014, in Baikonur, Kazakhstan. Gerst, Suraev, and Wiseman will launch in their Soyuz TMA-13M spacecraft to the International Space Station to begin a five and a half month mission. Photo Credit (NASA/Joel Kowsky)

Expedition 40 Flight Engineer Reid Wiseman of NASA is helped into his Russian Sokol suit as he and fellow cremates, Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Alexander Gerst of the European Space Agency, ESA, prepare for their Soyuz launch to the International Space Station, on Wednesday, May 28, 2014, in Baikonur, Kazakhstan. Launch of the Soyuz rocket will send Wiseman, Suraev, and Gerst on a five and a half month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Irina Peshkova)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, Soyuz Commander Sergey Prokopyev of Roscosmos, center, and flight engineer Alexander Gerst of ESA (European Space Agency) are seen as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Wednesday, June 6, 2018 in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, Soyuz Commander Sergey Prokopyev of Roscosmos, center, and flight engineer Alexander Gerst of ESA (European Space Agency), right, are seen as they depart Building 254 and report to mission managers a few hours before their launch, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Victor Zelentsov)

Expedition 41 light Engineer Alexander Gerst of the European Space Agency (ESA), seated left, Commander Max Suraev of the Russian Federal Space Agency (Roscosmos), center, and NASA Flight Engineer Reid Wiseman, participate in a welcome ceremony and press conference at the Kustanay Airport shortly after arriving there via helicopter from their Soyuz landing site in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, prepares to have her Russian Sokol suit pressure checked in preparation for launch aboard the Soyuz MS-09 spacecraft as Soyuz Commander Sergey Prokopyev of Roscosmos and flight engineer Alexander Gerst of ESA (European Space Agency) talk with family and friends, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, Soyuz Commander Sergey Prokopyev of Roscosmos, and flight engineer Alexander Gerst of ESA (European Space Agency) talk to Roscosmos and NASA management after having their Russian Sokol suits pressure checked ahead of their launch on a Soyuz rocket, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station.. Photo Credit: (NASA/Victor Zelentsov)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, has his Russian Sokol suit pressure checked in preparation for his launch onboard the Soyuz TMA-13M spacecraft on Wednesday, May 28, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Gerst, Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Reid Wiseman of NASA is scheduled to launch at 1:57 a.m. Kazakhstan time on Thursday, May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) is seen after the hatches were opened between the Soyuz MS-09 spacecraft and the International Space Station on screens at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-09 docked to the International Space Station on Friday, June 8, 2018. Hatches were opened at 11:17am EDT (6:17pm Moscow time) and Gerst, Serena Auñón-Chancellor of NASA, and Sergey Prokopyev of Roscosmos joined Expedition 56 Commander Drew Feustel of NASA, Ricky Arnold of NASA, and Oleg Artemyev of Roscosmos onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) talks with family and friends after having his Russian Sokol suit presseur checked as he and fellow crewmates Serena Auñón-Chancellor of NASA and Sergey Prokopyev of Roscosmos prepare for their Soyuz launch to the International Space Station, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket will send Gerst, Auñón-Chancellor, and Prokopyev on a six month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, flight engineer Alexander Gerst of ESA (European Space Agency), center, and Soyuz Commander Sergey Prokopyev of Roscosmos, right, wave farewell to family and friends as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Wednesday, June 6, 2018 in Baikonur, Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 41 light Engineer Alexander Gerst of the European Space Agency (ESA), left, Commander Max Suraev of the Russian Federal Space Agency (Roscosmos), center, and NASA Flight Engineer Reid Wiseman, sit in chairs outside the Soyuz TMA-13M capsule just minutes after they landed in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. Photo Credit: (NASA/Bill Ingalls)

Oleg Ostapenko, General Director of the Russian Federal Space Agency, Roscosmos, center, shakes hands with Expedition 40 Flight Engineer Reid Wiseman of NASA, right, as he and crewmates Soyuz Commander Maxim Suraev of Roscosmos, and Flight Engineer Alexander Gerst of the European Space Agency, ESA, prepare to depart for the launch pad on Wednesday, May 28, 2014, in Baikonur, Kazakhstan. Launch of the Soyuz rocket will send Gerst, Suraev, and Wiseman on a five and a half month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Irina Peshkova)

Expedition 41 light Engineer Alexander Gerst of the European Space Agency (ESA), seated left, Commander Max Suraev of the Russian Federal Space Agency (Roscosmos), center, and NASA Flight Engineer Reid Wiseman, pose for a photograph with women in kazakh ceremonial dress during a welcome ceremony at the Kustanay Airport shortly after they arrived there via helicopter from their Soyuz landing site in a remote area near the town of Arkalyk, Kazakhstan on Monday, Nov. 10, 2014. Suraev, Wiseman and Gerst returned to Earth after more than five months onboard the International Space Station where they served as members of the Expedition 40 and 41 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA, left, Soyuz Commander Sergey Prokopyev of Roscosmos, center, and flight engineer Alexander Gerst or ESA (European Space Agency), right, are seen as they talk with family and friends after having their Russian Sokol suits pressure checked in preparation for launch aboard the Soyuz MS-09 spacecraft, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station. Photo Credit: (NASA/Victor Zelentsov)

The Soyuz TMA-13M rocket is launched, as seen in this 30-second exposure, with Expedition 40 Soyuz Commander Maxim Suraev, of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst, of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA, Thursday, May 29, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next five and a half months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

The Soyuz TMA-13M rocket is launched with Expedition 40 Soyuz Commander Maxim Suraev, of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst, of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA, Thursday, May 29, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next five and a half months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

The Soyuz TMA-13M rocket is launched with Expedition 40 Soyuz Commander Maxim Suraev, of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst, of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA, Thursday, May 29, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next five and a half months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, bottom, Flight Engineer Reid Wiseman of NASA, center, and Flight Engineer Alexander Gerst of the European Space Agency, ESA, top, wave farewell prior to boarding the Soyuz TMA-13M rocket for launch, Wednesday, May 28, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next six months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Flight Engineer Alexander Gerst of the European Space Agency, ESA, is seen as he prepares to board the Soyuz TMA-13M spacecraft after waving farewell to those gathered on the pad on Wednesday, May 28, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next six months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, bottom, Flight Engineer Reid Wiseman of NASA, center, and Flight Engineer Alexander Gerst of the European Space Agency, ESA, top, wave farewell prior to boarding the Soyuz TMA-13M rocket for launch, Wednesday, May 28, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next six months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

The Soyuz TMA-13M rocket is launched with Expedition 40 Soyuz Commander Maxim Suraev, of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst, of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA, Thursday, May 29, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next five and a half months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

The Soyuz TMA-13M rocket is launched with Expedition 40 Soyuz Commander Maxim Suraev, of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst, of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA, Thursday, May 29, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next five and a half months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

The Soyuz TMA-13M rocket is launched with Expedition 40 Soyuz Commander Maxim Suraev, of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst, of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA, Thursday, May 29, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next five and a half months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

The Soyuz TMA-13M rocket is launched with Expedition 40 Soyuz Commander Maxim Suraev, of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst, of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA, Thursday, May 29, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next five and a half months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

The Soyuz TMA-13M rocket is launched with Expedition 40 Soyuz Commander Maxim Suraev, of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst, of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA, Thursday, May 29, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next five and a half months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

The Soyuz TMA-13M rocket is launched with Expedition 40 Soyuz Commander Maxim Suraev, of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst, of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA, Thursday, May 29, 2014 at the Baikonur Cosmodrome in Kazakhstan. Suraev, Gerst, and Wiseman will spend the next five and a half months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, second left, reacts as he is introduced during a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA will launch aboard their Soyuz TMA-13M spacecraft on their mission to the International Space Station in the early hours of May 29. Photo Credit: (NASA/Joel Kowsky)

Dan Hartman, NASA Deputy Space Station Program Manager speaks during the State Commission meeting held to approve the Soyuz launch of the crew for a five and a half month mission aboard the International Space Station, Tuesday, May 27, 2014 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA will launch about their Soyuz TMA-13M spacecraft in the early hours of May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, center, takes a picture with his cell phone during a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA will launch aboard their Soyuz TMA-13M spacecraft on their mission to the International Space Station in the early hours of May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, as seen during a press conference, Tuesday, May 27, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA will launch aboard their Soyuz TMA-13M spacecraft on their mission to the International Space Station in the early hours of May 29. Photo Credit: (NASA/Joel Kowsky)

Expedition 40 Soyuz Commander Maxim Suraev, speaks from behind glass, while in quarantine, during the State Commission meeting held to approve the Soyuz launch of the crew for a five and a half month mission aboard the International Space Station, Tuesday, May 27, 2014 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 40 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency, Roscosmos, Flight Engineer Alexander Gerst of the European Space Agency, ESA, and Flight Engineer Reid Wiseman of NASA will launch aboard their Soyuz TMA-13M spacecraft in the early hours of May 29. Photo Credit: (NASA/Joel Kowsky)