Supernovae may have triggered two mass extinctions

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Sujet : Supernovae may have triggered two mass extinctions
De : rokimoto557 (at) *nospam* gmail.com (RonO)
Groupes : talk.origins
Date : 06. Apr 2025, 01:40:05
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https://www.sciencedaily.com/releases/2025/03/250313130822.htm
The evidence is pretty thin, but the claim is that the Devonian and Ordovician extinction events that occurred 372 and 445 million years ago, respectively, may have been caused by supernovas exploding within 65 light years (20 parsecs) of our solar system.
Ron Okimoto

Date Sujet#  Auteur
6 Apr 25 * Supernovae may have triggered two mass extinctions2RonO
6 Apr 25 `- Re: Supernovae may have triggered two mass extinctions1erik simpson

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