Expedition 55 backup crew members pose as the Soyuz rocket is rolled out to the launch pad

Expedition 55 backup crew members Nick Hague of NASA, left, and Alexey Ovchinin of Roscosmos pose for a picture as the Soyuz rocket is rolled out to the pad, Monday, March 19, 2018 at the Baikonur Cosmodrome in Kazakhstan. Expedition 55 crewmembers Ricky Arnold and Drew Feustel of NASA and Oleg Artemyev of Roscosmos are scheduled to launch at 1:44 p.m. Eastern time (11:44 p.m. Baikonur time) on March 21 and will spend the next five months living and working aboard the International Space Station.