09:33
PBS Space Time
Life on Europa?
New findings have increased the likelihood that there is a vast ocean lying under Europa.
5 Ways to Stop a Killer Asteroid
PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down both the basic and incredibly complex sides of space and time.
5 Ways to Stop a Killer Asteroid
Season 2 Episode 8 | 8m 31s | CC
When it comes to dangerous asteroids striking Earth, it's not a matter of if, it's a matter of when. We have begun to track projectiles large enough to destroy our planet, and we are in the clear for the foreseeable future. However, there are countless asteroids large enough to take out an entire city that we cannot see.
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