Asteroid

Buy National Geographic Video - Asteroids - Deadly Impact from Amazon.com
From Nat'l Geographic Vid (DVD)
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Buy National Geographic's Restless Earth Collection (Asteroids Deadly Impact/Volcano/Nature's Fury) from Amazon.com
From National Geographic Video (DVD)
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Buy Contemporary Mysteries: Asteroid Collision and Crop Circles from Amazon.com
From Grizzly Adams Prod (DVD)
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Buy Invasion of the Mind Swappers From Asteroid 6! from Amazon.com
From Atheneum (Hardcover)
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