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Today's Nerdy Curio is brought to you by 60-Second Science. The mass extinction asteroid happened to strike a place where the rock contained lots of organic matter, and sent soot into the stratosphere where it could block sunlight for years.
-- Read more on ScientificAmerican.com
Aired October 22, 2020
All 60-Second Science content is available at www.scientificamerican.com
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