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flag Researchers claim supernovas may have triggered two major mass extinctions by harming Earth's ozone layer.

flag Researchers suggest supernovas may have caused two of Earth's largest mass extinctions by stripping the planet's ozone layer, exposing life to damaging radiation. flag The study calculates that about 2.5 supernovas could impact Earth every billion years, potentially linking to extinction events 372 million and 445 million years ago. flag However, the hypothesis lacks direct evidence, highlighting the need for further investigation to confirm the connection.

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