Expedition 39 backup crew member Elena Serova of the Russian Federal Space Agency, Roscosmos, is seen in quarantine, behind glass, during the final press conference held ahead of the launch of Expedition 39 prime crew members; Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Flight Engineer Steve Swanson of NASA, and Flight Engineer Oleg Artemyev of Roscosmos, to the International Space Station, Monday, March 24, 2014 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 primary crew flight engineer Steve Swanson of NASA, Soyuz commander Aleksander Skvortsov of the Russian Federal Space Agency, Roscosmos, flight engineer Oleg Artemyev of Roscosmos and Expedition 39 backup crew Barry Wilmore of NASA, Alexander Samokutyaev of Roscosmos, and Elena Serova of Roscosmos are seen in quarantine, behind glass, during the final press conference be Monday, March 24, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch March 26 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Expedition 39 Flight Engineer Oleg Artemyev of the Russian Federal Space Agency, Roscosmos, has his Russian Sokol suit pressure checked in preparation for his launch onboard the Soyuz TMA-12M spacecraft on Tuesday, March 25, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Artemyev, Expedition 39 Soyuz Commander Alexander Skvortsov of Roscosmos and Flight Engineer Steve Swanson of NASA is scheduled to launch at 3:17 a.m. Kazakhstan time on Wednesday, March 26. Photo Credit: (NASA/Joel Kowsky)

Expedition 39 Flight Engineer Steve Swanson of NASA has his Russian Sokol suit pressure checked in preparation for his launch onboard the Soyuz TMA-12M spacecraft on Tuesday, March 25, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Swanson, Expedition 39 Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Oleg Artemyev of Roscosmos is scheduled to launch at 3:17 a.m. Kazakhstan time on Wednesday, March 26. (NASA/GCTC/Irina Peshkova)

Expedition 39 backup crew member Aleksandr Samokutyaev of the Russian Federal Space Agency, Roscosmos, is seen in quarantine, behind glass, during the final press conference held ahead of the launch of Expedition 39 prime crew members; Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Flight Engineer Steve Swanson of NASA, and Flight Engineer Oleg Artemyev of Roscosmos, to the International Space Station, Monday, March 24, 2014 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 Flight Engineer Steve Swanson of NASA, center, speaks with his family during Russian Sokol suit pressure checks in preparation for launch onboard the Soyuz TMA-12M spacecraft on Tuesday, March 25, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Swanson, Expedition 39 Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Oleg Artemyev of Roscosmos is scheduled to launch at 3:17 a.m. Kazakhstan time on Wednesday, March 26. (NASA/Joel Kowsky)

Expedition 39 Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, has his Russian Sokol suit pressure checked in preparation for his launch onboard the Soyuz TMA-12M spacecraft on Tuesday, March 25, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Skvortsov, Expedition 39 Flight Engineer Steve Swanson of NASA and Flight Engineer Oleg Artemyev of Roscosmos is scheduled to launch at 3:17 a.m. Kazakhstan Time on Wednesday, March 26. Photo Credit: (NASA/GCTC/Irina Peshkova)

Expedition 39 flight engineer Steve Swanson of NASA is seen in quarantine, behind glass, during the final press conference be Monday, March 24, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch March 26 from the Baikonur Cosmodrome. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 Flight Engineer Rick Mastracchio of NASA is carried in a chair to a medical tent just minutes after he and Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) answers questions from the media during a welcome home ceremony, Wednesday, May 14, 2014 at the Karaganda Airport in Kazakhstan. Wakata, Expedition 39 Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA landed in their Soyuz TMA-11M spacecraft just a few hours earlier near the town of Zhezkazgan. 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)

Support personnel wait for the Expedition 39 crew members to be extracted from the Soyuz TMA-11M spacecraft shortly after it landed with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 Flight Engineer Rick Mastracchio of NASA is carried in a chair to a medical tent just minutes after he and Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 Flight Engineer Rick Mastracchio of NASA answers questions from the media during a welcome home ceremony, Wednesday, May 14, 2014 at the Karaganda Airport in Kazakhstan. Mastracchio, Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft just a few hours earlier near the town of Zhezkazgan. 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 39 Soyuz Commander Mikhail Tyurin of Roscosmos is seen wearing a ceremonial Kazakh hat and robe presented to him during a welcome home ceremony, Wednesday, May 14, 2014 at the Karaganda Airport in Kazakhstan. 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 just a few hours earlier near the town of Zhezkazgan. 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 39 Flight Engineer Rick Mastracchio of NASA is carried in a chair to a medical tent just minutes after he and Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), center, and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 Flight Engineer Rick Mastracchio of NASA rests in a chair outside the Soyuz Capsule just minutes after he and Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 Flight Engineer Rick Mastracchio of NASA is helped of the Soyuz Capsule just minutes after he and Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), center, and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 Flight Engineer Steve Swanson of NASA, left, and Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, right, speak with family members while Flight Engineer Oleg Artemyev of Roscosmos, has his Russian Sokol suit pressure checked in preparation for his launch onboard the Soyuz TMA-12M spacecraft on Tuesday, March 25, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Artemyev, Expedition 39 Soyuz Commander Alexander Skvortsov of Roscosmos and Flight Engineer Steve Swanson of NASA is scheduled to launch at 3:17 a.m. Kazakhstan time on Wednesday, March 26.

Ceremonial Kazakh hats and robes are laid out to be presented to Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA at a welcome ceremony, Wednesday, May 14, 2014 at the Karaganda Airport in 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)

20140514_2BI6007 Expedition 38/39 Flight Engineer Mikhail Tyurin of the Russian Federal Space Agency (Roscosmos) is welcomed home upon his return at Chkalovsky Airport in Russia, Wednesday, May 14, 2014, a few hours after landing in the Soyuz TMA-11M spacecraft in Kazakhstan. Tyurin, along with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency and NASA Flight Engineer Rick Mastracchio (not pictured) completed 188 days in space following their launch in November, 2013. Photo Credit: (NASA/Bill Ingalls)

20140514_1BI5658 Expedition 38/39 Flight Engineer Mikhail Tyurin of the Russian Federal Space Agency (Roscosmos) is welcomed home upon his return at Chkalovsky Airport in Russia, Wednesday, May 14, 2014, a few hours after landing in the Soyuz TMA-11M spacecraft in Kazakhstan. Tyurin, along with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency and NASA Flight Engineer Rick Mastracchio (not pictured) completed 188 days in space following their launch in November, 2013. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 Flight Engineer Steve Swanson of NASA, left, receives the traditional blessing from a Russian Orthodox priest at the Cosmonaut Hotel prior to his launch on the Soyuz rocket to the International Space Station, Tuesday, March 25, 2014, in Baikonur, Kazakhstan. Swanson, Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Oleg Artemyev of Roscosmos will spend six months living and working aboard the ISS. Photo Credit: (NASA/Joel Kowsky)

Expedition 39 Soyuz Commander Alexander Skvortsov 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 Steve Swanson of NASA and Flight Engineer Oleg Artemyev of Roscosmos, Tuesday, March 25, 2014, in Baikonur, Kazakhstan. Skvortsov, Swanson, and Artemyev will launch in their Soyuz TMA-12M spacecraft to the International Space Station to begin a six-month mission. Photo Credit (NASA/Joel Kowsky)

Expedition 39 Flight Engineer Steve Swanson of NASA, left, Soyuz Commander Alexander Skvortsov the Russian Federal Space Agency, Roscosmos, center, and Flight Engineer Oleg Artemyev of Roscosmos, right, are seen as they depart the Cosmonaut Hotel, Tuesday, March 25, 2014, in Baikonur, Kazakhstan. The trio is set to launch on a six month mission to the International Space Station onboard the Soyuz TMA-12M spacecraft at 3:17 a.m. Kazakhstan time on Wednesday, March 26. Photo Credit: (NASA/Joel Kowsky)

General Director of the Russian Federal Space Agency, Roscosmos, Oleg Ostapenko, as seen during the State Commission meeting to approve the Soyuz rocket launch of Expedition 39 Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Flight Engineer Steve Swanson of NASA, and Flight Engineer Oleg Artemyev of Roscosmos on a six month mission aboard the International Space Station, Monday, March 24, 2014 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 Flight Engineer Steve Swanson 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 Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Oleg Artemyev of Roscosmos, Tuesday, March 25, 2014, in Baikonur, Kazakhstan. Swanson, Skvortsov and, and Artemyev will launch in their Soyuz TMA-12M spacecraft to the International Space Station to begin a six-month mission. Photo Credit (NASA/Joel Kowsky)

This long expsoure photograph shows the flight path of the Soyuz TMA-12M rocket as it launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, March 26, 2014. The rocket is carrying Expedition 39 Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, Flight Engineer Steven Swanson of NASA, and Flight Engineer Oleg Artemyev of Roscosmos to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 Flight Engineer Oleg Artemyev, left, of the Russian Federal Space Agency, Roscosmos, performs the traditional door signing at the Cosmonaut hotel as Soyuz Commander Alexander Skvortsov of Roscosmos, looks on, Tuesday, March 25, 2014, in Baikonur, Kazakhstan. Artemyev, Skvortsov, and fellow crew member Flight Engineer Steve Swanson of NASA will launch in their Soyuz TMA-12M spacecraft to the International Space Station to begin a six-month mission. Photo Credit (NASA/Joel Kowsky)

Expedition 39 Flight Engineer Oleg Artemyev 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, Soyuz Commander Alexander Skvortsov of Roscosmos, and Flight Engineer Steve Swanson of NASA, Tuesday, March 25, 2014, in Baikonur, Kazakhstan. Artemyev, Skvortsov, and Swanson will launch in their Soyuz TMA-12M spacecraft to the International Space Station to begin a six-month mission. Photo Credit (NASA/Joel Kowsky)

The Soyuz TMA-12M rocket launches from Baikonur Cosmodrome in Kazakhstan on Wednesday, March 26, 2014 carrying Expedition 39 Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, Flight Engineer Steven Swanson of NASA, and Flight Engineer Oleg Artemyev of Roscosmos to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, has his Russian Sokol suit pressure checked in preparation for his launch onboard the Soyuz TMA-12M spacecraft on Tuesday, March 25, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Skvortsov, Expedition 39 Flight Engineer Steve Swanson of NASA and Flight Engineer Oleg Artemyev of Roscosmos is scheduled to launch at 3:17 a.m. Kazakhstan Time on Wednesday, March 26. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, speaks with his family during Russian Sokol suit pressure checks in preparation for launch onboard the Soyuz TMA-12M spacecraft on Tuesday, March 25, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Skvortsov, Expedition 39 Flight Engineer Oleg Artemyev of Roscosmos and Flight Engineer Steve Swanson of NASA is scheduled to launch at 3:17 a.m. Kazakhstan time on Wednesday, March 26. (NASA/Bill Ingalls)

Expedition 39 Flight Engineer Steve Swanson of NASA speaks with his family during Russian Sokol suit pressure checks in preparation for launch onboard the Soyuz TMA-12M spacecraft on Tuesday, March 25, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Swanson, Expedition 39 Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, and Flight Engineer Oleg Artemyev of Roscosmos is scheduled to launch at 3:17 a.m. Kazakhstan time on Wednesday, March 26. (NASA/Bill Ingalls)

Members of the media are seen reflected in the glass seprating them from the crew of Expedition 39 during the final press conference held ahead of the launch of Expedition 39 prime crew members; Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Flight Engineer Steve Swanson of NASA, and Flight Engineer Oleg Artemyev of Roscosmos, to the International Space Station, Monday, March 24, 2014 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 backup crew member Barry Wilmore of NASA is seen in quarantine, behind glass, during the final press conference held ahead of the launch of Expedition 39 prime crew members; Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Flight Engineer Steve Swanson of NASA, and Flight Engineer Oleg Artemyev of Roscosmos, to the International Space Station, Monday, March 24, 2014 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Photo Credit: (NASA/Joel Kowsky)

Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) answers questions from the media during a welcome home ceremony, Wednesday, May 14, 2014 at the Karaganda Airport in Kazakhstan. Wakata, Expedition 39 Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA landed in their Soyuz TMA-11M spacecraft just a few hours earlier near the town of Zhezkazgan. 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 39 Flight Engineer Rick Mastracchio of NASA is helped of the Soyuz Capsule just minutes after he and Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), center, and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 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)

NASA Flight Surgeon Joseph Schmid waits for the Expedition 39 crew members to be extracted from the Soyuz TMA-11M spacecraft shortly after it landed with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) is seen wearing a ceremonial Kazakh hat and robe and holding a matryoshka doll presented to him during a welcome home ceremony, Wednesday, May 14, 2014 at the Karaganda Airport in Kazakhstan. Wakata, Expedition 39 Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA landed in their Soyuz TMA-11M spacecraft just a few hours earlier near the town of Zhezkazgan. 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 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) answers questions from the media during a welcome home ceremony, Wednesday, May 14, 2014 at the Karaganda Airport in Kazakhstan. Wakata, Expedition 39 Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA landed in their Soyuz TMA-11M spacecraft just a few hours earlier near the town of Zhezkazgan. 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)

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)

Expedition 39 Flight Engineer Rick Mastracchio of NASA, left, and NASA Flight Surgeon Joseph Schmid prepare to depart in a helicopter from the Soyuz landing site near the town of Zhezkazgan, Kazakhstan where Mastracchio and Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft, Wednesday, May 14, 2014. 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 39 Flight Engineer Rick Mastracchio of NASA, is helped out of a helicopter at the Karaganda Airport in Kazakhstan after the two hour flight from the Soyuz landing site near the town of Zhezkazgan, Kazakhstan where Mastracchio and Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft, Wednesday, May 14, 2014. 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 39 Soyuz Commander Mikhail Tyurin of Roscosmos smiles during a welcome home ceremony, Wednesday, May 14, 2014 at the Karaganda Airport in Kazakhstan. 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 just a few hours earlier near the town of Zhezkazgan. 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 39 Soyuz Commander Mikhail Tyurin of Roscosmos answers questions from the media during a welcome home ceremony, Wednesday, May 14, 2014 at the Karaganda Airport in Kazakhstan. 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 just a few hours earlier near the town of Zhezkazgan. 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 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)

Support personnel prepare to exact the crew from the Soyuz TMA-11M spacecraft shortly after it landed with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

The last of the support personnel are seen working around the Soyuz TMA-11M spacecraft after it landed with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Support personnel prepare to exact the crew from the Soyuz TMA-11M spacecraft shortly after it landed with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Soyuz Commander Mikhail Tyurin of Roscosmos rests in a chair outside the Soyuz Capsule just minutes after he and 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 near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) is helped of the Soyuz Capsule just minutes after he and Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA, landed in their Soyuz TMA-11M spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) is helped of the Soyuz Capsule just minutes after he and Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA, landed in their Soyuz TMA-11M spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Support personnel are seen working around the Soyuz TMA-11M spacecraft after it landed with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Support personnel prepare to exact the crew from the Soyuz TMA-11M spacecraft shortly after it landed with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Russian Search and Rescue helicopter team members clean the windows of their helicopter and other support personnel are seen working around the Soyuz TMA-11M spacecraft in the background after the capsule landed with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Support personnel prepare to exact the crew from the Soyuz TMA-11M spacecraft shortly after it landed with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) gives a thumbs up to his NASA and Russian partners as he is carried from the Soyuz Capsule just minutes after he and Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA, landed in their Soyuz TMA-11M spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

A portable tent for Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA is used for the crew to remove their Russian Sokol suits and to have medical checks after the three landed in their Soyuz TMA-11M spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Soyuz Commander Mikhail Tyurin of Roscosmos is helped out of the Soyuz Capsule just minutes after he and 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 near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Support personnel prepare to exact the crew from the Soyuz TMA-11M spacecraft shortly after it landed with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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 39 primary crew flight engineer Steve Swanson of NASA, Soyuz commander Aleksander Skvortsov of the Russian Federal Space Agency, Roscosmos, flight engineer Oleg Artemyev of Roscosmos and Expedition 39 backup crew Barry Wilmore of NASA, Alexander Samokutyaev of Roscosmos, and Elena Serova of Roscosmos are seen in quarantine, behind glass, during the final press conference be Monday, March 24, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch March 26 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

The Soyuz TMA-11M spacecraft is seen as it lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

The Soyuz TMA-11M spacecraft is seen as it lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Support personnel race to the landing site as the Soyuz TMA-11M spacecraft lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

The Soyuz TMA-11M spacecraft is seen as it lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

The Soyuz TMA-11M spacecraft is seen as it lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

The Soyuz TMA-11M spacecraft is seen as it lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Support personnel race to the landing site as the Soyuz TMA-11M spacecraft lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

The Soyuz TMA-11M spacecraft is seen as it lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

The Soyuz TMA-11M spacecraft is seen as it lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

The Soyuz TMA-11M spacecraft is seen as it lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Ground personnel race to the landing site as the Soyuz TMA-11M spacecraft lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Ground personnel race to the landing site as the Soyuz TMA-11M spacecraft lands with Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), Soyuz Commander Mikhail Tyurin of Roscosmos, and Flight Engineer Rick Mastracchio of NASA near the town of Zhezkazgan, Kazakhstan on Wednesday, May 14, 2014. 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)

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Japan, etc.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image downlinked in folder: CA [California].

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was downlinked in folder: Denmark.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: London, etc.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Maldives and Kamchatka.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Euro pass.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was downlinked in folder: Fukuoka and Hita Japan, etc.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: south islands.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Lake Baikal.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Japan, etc.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Turkey.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Kamchatka.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Japan.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image downlinked in folder: Seattle to Florida. and released by astronaut on Twitter.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Bangkok [Thailand].

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Instagram and downlinked in folder: Bahamas and Cuba.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Japan.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Japan.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Japan.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image downlinked in folder: Seattle to Florida, and released by astronaut on Twitter.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: South Pacific.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Japan, etc.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: China, Korea.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Japan, etc.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Grand Canyon.

Earth observation taken by the Expedition 39 crew aboard the ISS. Image was released by astronaut on Twitter and downlinked in folder: Japan, etc.