A nearby gamma-ray burst could strip away half of Earth's ozone layer in under 10 seconds, exposing the surface to lethal ultraviolet radiation and potentially disrupting marine phytoplankton, which could collapse ocean food chains within weeks; this event may have contributed to the Ordovician mass extinction 450 million years ago.
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Gamma Burst Strips Ozone in 8 Seconds From 6,000 LY #ShortsAdded:
A nearby gammaray burst versus Earth's atmosphere. Here's what could happen.
The burst might strip away [music] a significant portion of our ozone layer in under 10 seconds, exposing the surface to increased [music] ultraviolet radiation.
Marine phytolanton could be affected first, potentially disrupting ocean food chains [music] over an extended period.
Some researchers hypothesize that a gammaray burst may have contributed to the orivision [music] mass extinction 450 million years ago, though other causes are also [music] debated.
Detection systems might provide some warning, though response time would be limited.
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