
For the first time in 25 years of continuous crewed operations, an astronaut has been medically evacuated from the International Space Station (ISS). The Crew-11 mission ended when a SpaceX Dragon capsule brought the four astronauts of Crew 11 home following a medical incident in early January 2026.
To protect the crewmember’s privacy, Nasa hasn’t yet disclosed details about what happened – and this article won’t speculate. But the evacuation raises a question worth exploring: how do astronauts stay healthy in space, and why is this early evacuation so unusual?