Expedition 55 Backup Crew Members Nick Hague and Alexey Ovchinin

At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 55 backup crewmembers Nick Hague of NASA (left) and Alexey Ovchinin of Roscosmos (right) pose for pictures during a day of qualification exams Feb. 20. They are serving as backups to the prime crew, Oleg Artemyev of Roscosmos and Ricky Arnold and Drew Feustel of NASA, who will launch March 21 on the Soyuz MS-08 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a five month mission on the International Space Station…NASA/Elizabeth Weissinger