Vredefort Crater Much Larger Than Originally Thought

New geological evidence finds that Vredefort crater in South Africa was originally 250–280 kilometers in diameter and formed by an object 20–25 kilometers wide.

CREDIT: NASA Earth Observatory image by Lauren Dauphin / University of Rochester illustration by Julia Joshpe

When we talk about planetary defense, especially in the context of the DART mission, mass extinction events…



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Beth Johnson

Planetary scientist, podcast host. Communication specialist for SETI Institute and Planetary Science Institute. Buy me a coffee: https://ko-fi.com/planetarypan