Astrobiology study links evidence of a supernova (that occurred 2.6 million years ago and 160 light years away) with simultaneous extinctions of many marine megafauna species on Earth because of exposure to the supernova’s deadly muon radiation.

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Astrobiology study links evidence of a supernova (that occurred 2.6 million years ago and 160 light years away) with simultaneous extinctions of many marine megafauna species on Earth because of exposure to the supernova’s deadly muon radiation.