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