Expedition 53 crew members: Joe Acaba of NASA, left, Alexander Misurkin of Roscosmos, center, and Mark Vande Hei of NASA pose for a photograph for the press outside the Soyuz simulator ahead of their Soyuz qualification exams, Thursday, Aug. 31, 2017 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/Bill Ingalls)

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