Official crew portrait of Expedition 57 crew members

iss057-s-002b (Nov. 8, 2017) --- Official crew portrait of Expedition 57 crew members (from left) Serena Auñón-Chancellor of NASA, Alexander Gerst of ESA (European Space Agency) and Sergey Prokopyev of Roscosmos.

Image Credit: NASA/Robert Markowitz

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Official crew portrait of Expedition 57 crew members

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