— Three NASA astronauts and one Russian cosmonaut were unexpectedly transferred to a medical facility in Florida rather than immediately returning to their home base in Houston after their splashdown early Friday morning aboard a SpaceX Crew Dragon capsule. One of those astronauts stayed at Ascension Sacred Heart Pensacola Friday with a “medical issue,” while the three others flew to NASA’s Johnson Space Center in Houston after a health evaluation at the same hospital, which is near the crew’s splashdown site in the Gulf of Mexico. The remaining crew member was released from the medical facility and returned to Houston on Saturday, according to NASA. The space agency did not provide any further details about the astronaut who experienced the medical issue, saying in a statement Friday only that the crew member was “in stable condition” and “under observation as a precautionary measure.” “To protect the crew member’s medical privacy, specific details on the individual’s condition or identity will not be shared,” according to the Friday afternoon statement from NASA news chief Cheryl Warner. The four-person crew, which spent nearly eight months aboard the International Space Station before landing in the Gulf of Mexico at 3:29 a.m. ET Friday, had a “safe splashdown and recovery,” NASA said Friday morning. However, all four astronauts “were taken to a local medical facility for additional evaluation,” according to an update from Warner shared at 8 a.m. ET. The measure was taken for the entire crew “out of an abundance of caution,” according to NASA. The four crewmates — including NASA astronauts Matthew Dominick, Michael Barratt and Jeanette Epps and Alexander Grebenkin of the Russian space agency Roscosmos — make up the staff of Crew-8, a routine mission to the International Space Station that Space X carried out on behalf of NASA. All four astronauts were seen smiling and waving as they exited their Crew Dragon capsule and boarded a recovery ship during a livestream of their splashdown early Friday. PENSACOLA, FLORIDA - OCTOBER 25: (EDITOR’S NOTE: This Handout image was provided by a third-party organization and may not adhere to Getty Images’ editorial policy.) In this NASA handout, Support teams work around the SpaceX Dragon Endeavour spacecraft shortly after it landed with NASA astronauts Matthew Dominick, Michael Barratt, and Jeanette Epps, and Roscosmos cosmonaut Alexander Grebenkin aboard in the Gulf of Mexico off the coast of Pensacola, Florida on October 25, 2024. Dominick, Barratt, Epps, Grebenkin are returning after seven-months in space as part of Expedition 70 aboard the International Space Station. (Photo by Joel Kowsky/NASA via Getty Images) Joel Kowsky/NASA/Getty Images