Ground Control to Space Junk

There are no international laws against littering in space, which is a shame, because individual governments love to blow things up in low-Earth orbit. The result? A crisis of ricocheting debris that goes on forever. As private industry sends an unprecedented number of satellites into orbit, security experts find themselves in a race against the clock to bring sanity (or sanitation?) to the space around us. This episode features former NASA astrophysicist Donald Kessler, Professor Mariel Borowitz of Georgia Tech, and Victoria Samson and Brian Weeden of the Secure World Foundation.