Planetary Radio: Space Exploration, Astronomy and Science
Happy Asteroid Day!
39 min•28 juni 2017
Om avsnittet
Asteroid Day, June 30th, marks the anniversary of the great Tunguska impact that leveled a Siberian forest. It reminds us that a Near Earth Object can destroy a city or even a civilization. Former Minor Planet Center Director Tim Spahr reviews our efforts to find and understand these bodies.Learn more about your ad choices. Visit megaphone.fm/adchoices
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