<ul><li>Supernova explosions may have caused mass extinctions, wiping out up to 85% of animals on Earth, according to a new study.</li><li>Supernovas are the most energetic explosions in the universe and if one were to occur close to Earth, it would be devastating for life.</li><li>A research team conducted a census of supernovas within the Milky Way and found a correlation between the rate of massive star formation and mass extinction events on Earth.</li><li>Supernova explosions can strip the Earth's atmosphere of ozone, exposing the planet to fatal levels of ultraviolet radiation and causing long-lasting damage.</li></ul>

Supernovas may have caused mass extinctions that killed 85% of life on Earth

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