NASA's Spitzer Telescope discovered evidence that a high-speed collision between two planets happened thousands of years ago. Scientists think this type of collision is how planets, like the Earth, are formed.
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Space: Proof of Cosmic Smash-Up
NASA's Spitzer Telescope discovered evidence that a high-speed collision between two planets happened thousands of years ago. Scientists think this type of collision is how planets, like the Earth, are formed.
Added: Sep 1, 2009
Views: 30874 Views
Runtime: 00:58
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