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The Conversation USA

Exploding stars are rare but emit torrents of radiation − if one happened close enough to Earth, it could threaten life on the planet

  • Written by Chris Impey, University Distinguished Professor of Astronomy, University of Arizona
imageMassive dying stars emit large amounts of radiation. NASA/ESA/Hubble SM4 ERO Team via AP

Stars like the Sun are remarkably constant. They vary in brightness by only 0.1% over years and decades, thanks to the fusion of hydrogen into helium that powers them. This process will keep the Sun shining steadily for about 5 billion more years, but when...

Read more: Exploding stars are rare but emit torrents of radiation − if one happened close enough to Earth,...

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