Supernova Death Blasts May Have Wiped Out Life on Earth – Twice

Researchers link two ancient mass extinctions to nearby supernova explosions, which may have damaged Earth’s atmosphere and triggered global biodiversity loss. A new study suggests that at least two of Earth’s mass extinction events may have been triggered by the powerful effects of nearby supernova explosions. Researchers from Keele University propose that these massive stellar [...]

from SciTechDaily https://ift.tt/dHZin2E