Nearby Supernova Explosions May Have Caused Several Mass Extinctions on Earth

According to new research from Keele University and the Universidad de Alicante, near-Earth explosions of giant O- and B-type stars occur at a rate of 2.5 per one billion year.
The post Nearby Supernova Explosions May Have Caused Several Mass Extinctions on Earth appeared first on Sci.News: Breaking Science News.
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