I am not sure, but was there any public warning or announcement of this event? What if the next one is much stronger? What if these events are not so rare as astronomers claim?
Such an event could perhaps cause a real climate crisis much worse than the one advertised every day due to greenhouse gases!
"On 9 October 2022, for 7 minutes, high-energy photons from a gigantic explosion 1.9 billion light years away toasted one side of Earth as never before observed. The event, a gamma-ray burst astronomers have dubbed the “BOAT” (the Brightest Of All Time), was 70 times brighter than the previous record holder and ionized atoms across the ionosphere, researchers say.
“It was such a massive event, it affected all levels of the atmosphere,” ... And that means that a closer burst could impact life on Earth.
Soon after the blast, ... showed that it ionized gas 60 kilometers up. Now a team reports in Nature Communications that an electric field sensor onboard the Chinese Seismo-Electromagnetic Satellite—designed to monitor earthquake precursors from an altitude of 507 kilometers—also sensed the burst.
The results underline the threat of a closer gamma-ray burst, which could destroy Earth’s ozone layer, exposing plants and animals to greatly increased ultraviolet light from the Sun. But astronomers calculate a blast that close is extremely rare. ..."
"... Astronomers estimate, however, that GRB 221009A was a one-in-10,000-year event and so a closer one would be even rarer. ..."
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