NASA Medical Evacuation

An ailing astronaut is back on Earth. The crew of four returned Thursday, ending their space station mission more than a month early in NASA's first medical evacuation. SpaceX guided the capsule to a middle-of-the-night splashdown in the Pacific near San Diego. It was an unexpected finish to a mission that began in August and left the International Space Station with only three on board. NASA and SpaceX say they will try to move up the launch of the next crew, currently targeted for mid-February. The newly returned astronauts will spend a night at a San Diego hospital before flying to Houston.