Sharp-eyed Alma spots a gigantic flare on famous red giant star

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Sharp-eyed Alma spots a gigantic flare on famous red giant star

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Super-sharp observations with the telescope Alma have revealed what seems to be a gigantic flare on the surface of Mira, one of the closest and most famous red giant stars in the sky. Activity like this in red giants - similar to what we see in the Sun -- comes as a surprise to astronomers. The discovery could help explain how winds from giant stars make their contribution to our galaxy's ecosystem.