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Study Links Supernovae to Historic Earth Extinctions

4/4/2025

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Summary

Story summary

A groundbreaking study from Keene University reveals that two significant Earth extinctions—the late Ordovician and late Devonian—might have been triggered by nearby supernovae. These cosmic explosions could have depleted the ozone layer, unleashing harmful UV radiation on life. Thankfully, the closest supernova candidates, Antares and Betelgeuse, are far enough away to keep us safe.

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Story summary

A groundbreaking study from Keene University reveals that two significant Earth extinctions—the late Ordovician and late Devonian—might have been triggered by nearby supernovae. These cosmic explosions could have depleted the ozone layer, unleashing harmful UV radiation on life. Thankfully, the closest supernova candidates, Antares and Betelgeuse, are far enough away to keep us safe.