I If GRB-221009A had been in Milky Way, would we have been fried?

Thread starter swampwiz
Start date Apr 2, 2023
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Milky way

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If GRB-221009A had occurred in the Milky Way, its effects would not have impacted current life on Earth, as it took place 1.9 billion years ago. The discussion highlights that humanity would not exist in its current form, as life was predominantly cyanobacteria at that time. Additionally, a significant mass extinction event occurred around 2 billion years ago, which eliminated up to 99.5% of life on Earth. The implications of such a gamma-ray burst are largely theoretical, given the timeline of events. Overall, the discussion emphasizes the historical context of life on Earth in relation to cosmic events.

Apr 2, 2023

swampwiz

https://en.wikipedia.org/wiki/GRB_221009A

Astronomy news on Phys.org

Apr 2, 2023

DaveC426913

Gold Member

No. It occurred 1.9 billion years ago! :oldbiggrin:

We would all be in the ocean depths for another 1.5 billion years. Also, "we" are all just cyanocbacteria.
BTW, "A mass extinction occurred around 2 billion years ago, wiping out up to 99.5% of life on Earth..."

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