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Cosmonaut Sergey Prokopyev of Roscosmos is a backup crew member for Expedition 54 55.

NASA

NASA
Washington, DC, United States

Cosmonaut Sergey Prokopyev of Roscosmos is a backup crew member for Expedition 54-55. He is also the Flight Engineer for Expedition 56-57.

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  • Title: Cosmonaut Sergey Prokopyev of Roscosmos is a backup crew member for Expedition 54 55.
  • About Title: To help you find images you’re searching for, previously untitled images have been labelled automatically based on their description
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