One In A Million!

Planetary Radio: Space Exploration, Astronomy and Science

English - February 25, 2013 06:00 - 37 minutes - 34.6 MB - ★★★★★ - 1.2K ratings
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Previous Episode: Chris Lewicki of Planetary Resources: Mining Asteroids For Fun and Profit

Next Episode: Alan Stern's Golden Spike Sets Sights on the Moon

UC Berkeley SETI researcher Andrew Siemion and his colleagues have put an upper limit on the number of civilizations in our galaxy that are capable of giving us a call. He’ll explain their reasoning and provide other search updates.Learn more about your ad choices. Visit megaphone.fm/adchoices

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