Incoming: The Chicxulub Impactor, Part 6 ― Now What? By Stephanie Osborn

Incoming: The Chicxulub Impactor, Part 6 ― Now What? By Stephanie Osborn

http://www.stephanie-osborn.com

In the last 600 million years, at least 3 large asteroids have impacted Earth, sufficient to generate craters of order 100km (60mi) across or greater. These are Chicxulub (in Yucatan, Mexico), Popigai (in Siberia, Russia), and Manicouagan (in Quebec, Canada).

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Popigai Crater, Russia

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Manicouagan Crater, Quebec, Canada

All three have been considered for the causes of mass extinctions.

As...