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Nasa is considering an early return of some crew aboard the International Space Station (ISS) because of a medical issue involving one member of a four-strong team. The unnamed crew member is described as stable, but the incident has already led to the last-minute cancellation of a spacewalk.
NASA Administrator Jared Isaacman said the crew member is stable and stressed Thursday that the decision to bring Crew-11 home ahead of schedule is a precautionary move focused on astronaut health, not an emergency evacuation.