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2013 Planetary Defense Conference--Part 1: Intros and What's Up!

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What a night! More than 900 people gathered at Northern Arizona University on April 17, 2013 to celebrate science and people who have dedicated themselves to saving humanity from a killer asteroid. Master of Ceremonies Bruce Betts, the Planetary Society's Director of Projects, gets the evening started, and is then joined by Planetary Radio host Mat Kaplan for a raucous What's Up! recording session.

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