CNN Legal View With Ashleigh Banfield March 19, 2014 16:52:00
They don't have any pro pellant to keep them back up when they come down, right? >> well, there is is nothing to slow them down. if you think about it, the moon doesn't have any propellent either. once you get going fast enough, there is nothing to slow you down or almost nothing. and every few months or so on the space station, we fire the engines just a little bit, the thrusters, just to raise our orbit a little. these little satellites don't have any thrusters. so their orbit will slowly decay and they'll burn up in the upper atmosphere after a couple years. but in their couple years of ser...