Expedition 55 Preflight

NASA International Space Station Program Manager Kirk Shireman escorts Expedition 55 flight engineer Ricky Arnold of NASA as he prepares to board the Soyuz MS-08 spacecraft for launch, Wednesday, March 21, 2018 at the Baikonur Cosmodrome in Kazakhstan. Arnold and his crewmates Drew Feustel of NASA and Oleg Artemyev of Roscosmos will spend the next five months living and working aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)