Could recent supernovae be responsible for mass extinctions?

Two nearby supernovae that exploded about 2.5 and eight million years ago could have resulted in a staggered depletion of Earth's ozone layer, leading to a variety of repercussions for life on Earth.

Could recent supernovae be responsible for mass extinctions?

Two nearby supernovae that exploded about 2.5 and eight million years ago could have resulted in a staggered depletion of Earth's ozone layer, leading to a variety of repercussions for life ...

Fri 18 May 18 from Phys.org

Could Recent Supernova Explosions Have Caused Mass Extinctions on Earth?, 16 hours ago from SPACE.com

Could recent supernovae be responsible for mass extinctions?, Fri 18 May 18 from Astrobiology Magazine

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