Expedition 55 Preflight

Expedition 55 flight engineer Ricky Arnold of NASA waves farewell as he and Soyuz Commander Oleg Artemyev of Roscosmos and flight engineer Drew Feustel of NASA depart Building 254 for the launch pad a few hours before their launch, Wednesday, March 21, 2018 at the Baikonur Cosmodrome Kazakhstan. Launch of the Soyuz rocket will send Arnold, Artemyev, and Feustel on a five month mission aboard the International Space Station. Photo Credit: (NASA/Victor Zelentsov)