Expedition 43 Preflight

Expedition 43 backup crew members: Russian cosmonaut Sergei Volkov of the Russian Federal Space Agency (Roscosmos), left, Russian cosmonaut Alexei Ovchinin of Roscosmos, center, and NASA Astronaut Jeff Williams answer questions from the press outside the Soyuz simulator ahead of their Soyuz qualification exams, Wednesday, March 4, 2015, at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/Bill Ingalls)