A Nearby Supernova May Have Caused a Mass Extinction 2.6 Million Years Ago

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Supernovae are the explosive end stages of massive stars. About 2.6 million years ago, one such supernova lit up Earth’s sky from about 150 light-years away. A few hundred years later, after the new star had long since faded from the sky, cosmic rays from the event finally reached Earth, slamming into our planet. Now, a group of researchers led by Adrian Melott at the University of Kansas believes this cosmic onslaught is linked to a mass extinction of ocean animals roaming Earth’s waters at


Original Title: A Nearby Supernova May Have Caused a Mass Extinction 2.6 Million Years Ago
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