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Planetary TVThe Planetary Post

Defending Our Planet, Featuring Dr. Amy Mainzer - The Planetary Post

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How can we protect the Earth from an asteroid impact? Watch this episode of The Planetary Post with special guest Dr. Amy Mainzer of NASA's Jet Propulsion Laboratory. Also, CEO Bill Nye continues our co-founder Carl Sagan's vision for solar sailing with a special appearance on The Late Show with Stephen Colbert.

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