The Expedition 55 backup and prime crewmembers pose for pictures as part of the crew's first vehicle fit check activities.

AirshowAt the Baikonur Cosmodrome in Kazakhstan, the Expedition 55 backup and prime crewmembers pose for pictures March 5 as part of the crew’s first vehicle fit check activities. In the front row are the backup crewmembers, Alexey Ovchinin of Roscosmos (left) and Nick Hague of NASA (right). In the back row are the prime crewmembers, Oleg Artemyev of Roscosmos (left), Drew Feustel of NASA (center) and Ricky Arnold of NASA (right), who will launch March 21 in the Soyuz MS-08 spacecraft from Baikonur for a five-month mission on the International Space Station...NASA/Victor Zelentsov.