Shuttle Atlantis unwrapped ahead of public debut

Former astronaut Bruce McCandless II, a retired Navy captain and son of a Medal of Honor winner who joined NASA during the buildup to the Apollo program, served as capsule communicator when Neil Armstrong took his historic first step on the moon and later flew in space twice during the shuttle program, died Thursday. He was 80.

Astronauts Doug Hurley and Bob Behnken donned their SpaceX-made launch and entry flight suits Saturday and rode to pad 39A at the Kennedy Space Center in a final dress rehearsal before launch day.

NASA Astronaut Shannon Lucid spent six months aboard the Mir Space Station in 1996. In this video she gives a guided tour of the Russian space outpost.