European Space Agency's astronaut Alexander Gerst, left, Russian cosmonaut Maxim Suraev, center, and NASA astronaut Reid Wiseman, crew members of the mission to the International Space Station, ISS, gesture prior the launch of Soyuz-FG rocket at the Russian leased Baikonur cosmodrome, Kazakhstan, Wednesday, May 28, 2014. (AP Photo/Sergei Ilnitsky, Pool)
The Soyuz-FG rocket booster with Soyuz TMA-13M space ship carrying a new crew to the International Space Station, ISS, flies in the sky at the Russian leased Baikonur cosmodrome, Kazakhstan, Thursday, May 29, 2014. Circular star tracks around the Polar Star and track of the rocket a the result of the long time exposure. (AP Photo/Dmitry Lovetsky)
European Space Agency's astronaut Alexander Gerst, left, Russian cosmonaut Maxim Suraev, center, and NASA astronaut Reid Wiseman, crew members of the latest mission to the International Space Station, ISS, walk to a bus from a hotel, prior to the launch of Soyuz-FG rocket at the Russian leased Baikonur cosmodrome, Kazakhstan, Wednesday, May 28, 2014. (AP Photo/Dmitry Lovetsky)
NASA astronaut Reid Wiseman, crew members of the mission to the International Space Station, ISS, gestures prior to the launch of the Soyuz-FG rocket at the Russian leased Baikonur cosmodrome, Kazakhstan, Wednesday, May 28, 2014. (AP Photo/Dmitry Lovetsky)
European Space Agency's astronaut Alexander Gerst, left, Russian cosmonaut Maxim Suraev, center, and NASA astronaut Reid Wiseman, crew members of the mission to the International Space Station, ISS, report to members of the State Committee prior the launch of Soyuz-FG rocket at the Russian leased Baikonur cosmodrome, Kazakhstan, Wednesday, May 28, 2014. (AP Photo/Kiril Kudryavtsev, Pool)