Today, Atlantis' astronauts will begin the job of preparing their shuttle for landing at the Kennedy Space Center on Thursday. The shuttle mission, STS-135 on Atlantis, will conclude NASA's 30-year-old space shuttle program, leaving many to wonder what's next for NASA and space exploration. Charles Bolden, NASA Administrator, joins Ali Velshi today on American Morning … Continue reading After Atlantis lands tomorrow, what's next for NASA? Administrator Bolden explains