Expedition 55 Flight Engineer Ricky Arnold of NASA during a press conference

Expedition 55 flight engineer Ricky Arnold of NASA is seen in quarantine, behind glass, during a press conference, Tuesday, March 20, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Arnold, Soyuz Commander Oleg Artemyev of Roscosmos, flight engineer Drew Feustal of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-08 spacecraft on Wednesday, March 21.