How the Universe Works Season 2 Episode 7

How the Universe Works → Season 2 → Episode 7: Asteroids - Worlds That Never Were
From icy worlds with more fresh water than Earth to flying mountains of pure metal, asteroids shaped our past and promise much for the future. Could these enigmatic space rocks hold the key to how life in the Universe arises and is extinguished?
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Watch Asteroids - Worlds That Never Were
Air Date: 22 August 2012
Director: George Harris
Language:
Runtime: 0 Minutes
More Info: IMDb

Cast: Mike Rowe, Dan Durda, Lawrence Krauss, Peter Schultz, Phil Plait, Michio Kaku, Michelle Thaller, Russell Schweickart, Mark Sykes, Barack Obama


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