Russian Institute for Biomedical Problems Director Oleg Orlov looks out of the window of an Antonov AN-26 transport aircraft in preparation for the Soyuz MS-04 rocket landing and return of Expedition 51 and Expedition 52 astronauts from the NASA International Space Station September 2, 2017 in Zhezkazgan, Kazakhstan. (photo by Bill Ingalls via Planetpix)

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Photo credit: © NASA Photo / Alamy / Afripics
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