Three NASA astronauts returned to Earth back on October 25 after nearly eight months aboard the International Space Station. Shortly after their SpaceX capsule splashed down, they were taken to a Pensacola hospital, with one astronaut staying overnight for an undisclosed medical issue. NASA has still not revealed who was sick, citing medical privacy. The astronauts faced unexpected health challenges during their mission, but no other details are being released, and all are said to be still recovering.