Four astronauts were unexpectedly transferred to a medical facility after their return from space Friday morning. Three were released, while one astronaut remained hospitalized Friday afternoon.

A NASA astronaut suffered a medical issue and remains hospitalized in Florida on Friday after returning to Earth from a nearly eight-month stay in space. NASA did not reveal which of the three NASA astronauts of the four-person crew of the SpaceX Crew-8 mission suffered the issue,

SpaceX’s Dragon spacecraft splashed down off the Florida coast Friday, returning a crew of Russian and American astronauts who spent seven months aboard the International Space Station following a series of delays and issues with Boeing’s Starliner capsule.