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A 2013 meteor explosion above Chelyabinsk, Russia injured more than 1,700 people. It was completely unexpected — and it could happen again. Here’s what NASA’s doing to make sure we know how to act when (not if) the next one hits.
This is NASA’s Plan to Save Earth From Killer Asteroids
Watch the video here: https://www.youtube.com/watch?v=7Z4GdGwu9dM