Expedition 43 backup crew member, Russian Cosmonaut Sergei Volkov of the Russian Federal Space Agency (Roscosmos), answers questions from the media ahead of his Soyuz qualification exams with fellow backup crew members, Russian cosmonauts Alexei Ovchinin of Roscosmos, and NASA Astronaut Jeff Williams, Wednesday, March 4, 2015, at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. (NASA/Bill Ingalls)

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Keywords: 43, agency, bill, city, expedition, federal, ingalls, launch, nasa, preflight, rocket, russia, russian, sergei, sokol, space, star, suit, volkov