NASA International Space Station Expedition 53 backup crew member Russian cosmonaut Anton Shkaplerov of Roscosmos waits to enter the Soyuz MS-06 spacecraft simulator during during his Soyuz qualification exams at the Gagarin Cosmonaut Training Center August 30, 2017 in Star City, Russia. (photo by Bill Ingalls via Planetpix)

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Photo credit: © NASA Photo / Alamy / Afripics
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