This Swiss Satellite Is Like A Roomba For Space

Space junk is a serious if little-appreciated problem. Dead satellites, spent booster rockets, and other orbiting technical garbage place active satellites and manned craft in significant peril. In a culturally appropriate effort, the Swiss Space Center is launching the CleanSpace program to tidy up low-earth orbit. » 2/15/12 4:30pm 2/15/12 4:30pm