Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) is seen in quarantine, behind glass, during a press conference, Tuesday, June 5, 2018 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Gerst, Soyuz Commander Sergey Prokopyev of Roscosmos, and flight engineer Serena Auñón-Chancellor of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-09 spacecraft on Wednesday, June 6. Photo Credit: (NASA/Joel Kowsky)