Neil deGrasse Tyson: The Dangers of Near-Earth Asteroids
1 year ago
62
How frequently do asteroids come near Earth, and how dangerous are they? How much warning do we get? Neil deGrasse Tyson, astrophysicist, host of StarTalk Radio and director of the Hayden Planetarium, answers a fan's Cosmic Query in this Behind the Scenes video. With co-host Chuck Nice.
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