WIKIARCHIVES.SPACE

In Baikonur, Kazakhstan, Expedition 51 backup crewmembers Randy Bresnik of NASA (left) and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, right) are shown a model of a Soyuz rocket at a local museum April 7 during pre-launch activities. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station.