Record-long U.S. spaceflight leaves astronaut feeling sore

Astronaut Scott Kelly said on Friday he returned from a record-long U.S. spaceflight with sore muscles, joint pain, over-sensitive skin and a sense he had been away for more than a year. “It seemed like I lived there forever,” Kelly told reporters at the Johnson Space Center in Houston and on a conference call during his first news conference since returning from a 340-day mission aboard the International Space Station.