jsc2017e137340 - At their Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 54-55 backup crewmembers Jeanette Epps of NASA (left), Sergey Prokopyev of the Russian Federal Space Agency (Roscosmos, center) and Alexander Gerst of the European

At their Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 54-55 backup crewmembers Jeanette Epps of NASA (left), Sergey Prokopyev of the Russian Federal Space Agency (Roscosmos, center) and Alexander Gerst of the European Space Agency (right) conduct rendezvous and docking runs on a laptop computer simulator Dec. 11. They are serving as backups to Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA), Anton Shkaplerov of Roscosmos and Scott Tingle of NASA who will launch Dec. 17 on the Soyuz MS-07 spacecraft from the Baikonur Cosmodrome for a five month mission on the International Space Station. Andrey Shelepin / Gagarin Cosmonaut Training Center

jsc2017e137340 - At their Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 54-55 backup crewmembers Jeanette Epps of NASA (left), Sergey Prokopyev of the Russian Federal Space Agency (Roscosmos, center) and Alexander Gerst of the European Space Agency (right) conduct rendezvous and docking runs on a laptop computer simulator Dec. 11. They are serving as backups to Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA), Anton Shkaplerov of Roscosmos and Scott Tingle of NASA who will launch Dec. 17 on the Soyuz MS-07 spacecraft from the Baikonur Cosmodrome for a five month mission on the International Space Station...Andrey Shelepin / Gagarin Cosmonaut Training Center.