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Episode 25: Asteroid's Destruction Caused Dust Storm

Play Mar 2•4:19

Deep in the Indian and Atlantic Oceans lies evidence of a massive cosmic dust storm over 8 million years ago. Scientists found helium-3, an element rarely found on Earth, in a layer of ocean sediment dating to that time period. The dust storm, the biggest of the past 80 million years, was likely caused by an asteroid that broke apart in space. As the Earth traveled its orbit around the...

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