How the Universe Works Season 2 Episode 7 - Asteroids - Worlds That Never Were

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2 - 7: Asteroids - Worlds That Never Were

Asteroids shaped our past and promise much in the future; revealing the mysteries behind giant asteroids that influence the creation and destruction of life on Earth.

Air Date: 8/22/2012

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How the Universe Works: Season 2, Episode 7

2 - 7: Asteroids - Worlds That Never Were