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Preview: Cosmic Roulette

Name: Preview: Cosmic Roulette
Uploaded: 2014-06-06T13:22:39-0400
Duration: 36 s
Description: Scientists say there are more than a million near-Earth objects in space big enough to destroy a city, but they only know the location of one percent. Anderson Cooper reports on Sunday, June 8 at 7 p.m. ET/PT.

Scientists say there are more than a million near-Earth objects in space big enough to destroy a city, but they only know the location of one percent. Anderson Cooper reports on Sunday, June 8 at 7 p.m. ET/PT.