Astronaut Donald McMonagle works with HPP-2 experiment on middeck

Astronaut Charles Conrad during extravehicular activity on lunar surface

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Portrait of Astronaut Nick Hague

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Lunabotics / Robotic Mining Competition

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NASA astronaut Scott Tingle is pictured during a spacewalk

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NASA astronaut Chris Williams participates in spacewalk training

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NASA astronaut Scott Tingle wears a U.S. spacesuit

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NASA astronaut Chris Williams participates in spacewalk training

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NASA astronaut Chris Williams participates in spacewalk training

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View of Astronaut Virgil Grissom through spacecraft window prior to launch

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Commercial Crew Program Astronaut Training - Suni Williams and J

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Zero-g tests of involving Astronaut candidate Daniel C. Brandenstein

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