A new type of supernova can tear apart a planet’s atmosphere

Supernovas are bad news. They can destroy biospheres and flood planets with deadly radiation. And now, a recent study has added a potential new threat: a special type of supernova that can destroy a planet’s ozone layer years after the initial explosion.

When giant stars die in massive explosions called supernova, they temporarily become some of the brightest objects in the universe. A single supernova can eclipse the combined light of hundreds of billions of stars.

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