NASA's Upper Atmosphere Research Satellite is coming back to Earth, and there's a 1 in 3,200 chance that it will hit someone, but what are the chances it will hit YOU? Michael Eric Dyson talks with Dr. Paul Ceruzzi of the National Air and Space Museum about how much "space junk" actually orbits the Earth, and what the chances of catching a piece really is.Sept. 23, 2011
