237: Why does an asteroid hit the Earth? And why so big?
Aug 1, 2026 - 13:37
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Radio and PodcastLive Radio & PodcastsA question from Issac, age 4. Dr. Jeff Rich answers. For more on Dr. Rich's work, see episodes 14 , 81 , 118 , or 159 , or visit the Carnegie Observatories website . Find the pocket solar system instructions here .
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