Maybe not just stardust ...green bananas ?

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Maybe not just stardust ...green bananas ?

#1  Postby Macdoc » Aug 25, 2020 12:06 pm

Exploding stars may have caused mass extinction on Earth, study shows
Date:
August 18, 2020
Source:
University of Illinois at Urbana-Champaign, News Bureau
Summary:
Killer cosmic rays from nearby supernovae could be the culprit behind at least one mass extinction event, researchers said, and finding certain radioactive isotopes in Earth's rock record could confirm this scenario.


https://www.sciencedaily.com/releases/2 ... 142104.htm
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Re: Maybe not just stardust ...green bananas ?

#2  Postby felltoearth » Aug 25, 2020 12:14 pm

Wouldn’t a brown dwarf or remnant of the supernova still exist?
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