Superflares, extreme radiation bursts from stars, have been suspected of causing lasting damage to the atmospheres and thus habitability of exoplanets. A newly published study found evidence that they only pose a limited danger to planetary systems, since the radiation bursts do not explode in the direction of the exoplanets.
Superflares 10,000 times more powerful than those in our solar system, observed on sun-like stars
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Impact of space weather on climate and habitability of terrestrial-type exoplanets, International Journal of Astrobiology
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