jsc2017e038547

2638: At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 crewmembers Jack Fischer of NASA (left) and Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, right) flash broad smiles March 30 as they begin final crew qualification exams. They will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. NASA/Rob Navias

jsc2017e038547 (March 30, 2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 crewmembers Jack Fischer of NASA (left) and Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, right) flash broad smiles March 30 as they begin final crew qualification exams. They will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Credit: NASA/Rob Navias