International Space Station, NASA and Astronauts
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NASA did not identify the crew member or provide details on the medical concern, citing privacy issues in a brief blog post.
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Crew-11 astronauts undock in 1st-ever medical evacuation from the International Space Station (video)With its departure ahead of Crew-12's arrival, Crew-11 leaves behind a skeleton crew of three aboard the ISS, including Kud-Sverchov and fellow cosmonaut Sergei Mikaev as well as NASA astronaut Chris Williams. Crew-12 is currently scheduled to launch no earlier than Feb. 15.