Science
Researchers propose a supernova triggered the Late Devonian mass extinction – Ars Technica
Astrophysicist Brian Fields models the impact of distant supernova events.
Enlarge/ The Cassiopeia A supernova which left this remnant behind occurred about 11,000 light years awaymuch too far to pose a significant threatand its wavefront likely reached Earth about 300 years ago.
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A paper released this week by University of Illinois Urbana-Champaign astronomy and physics professor Brian Fields makes a case for distant supernovae as a cause of a past mass extinction eventspecifically, the Hangenberg event, which marks the boundary between…
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