NASA telescope uncovers the cause of Betelgeuse’s mysterious dimming – CNET

Betelgeuse will go supernova and explode… eventually.
ESO
In the Before Times, when the coronavirus pandemic was only just beginning its grim march across the globe, our troubles were much farther away. About 640 light-years farther away, in fact. Astronomers observing Betelgeuse, a red supergiant star, had been puzzled by its mysterious dimming. Some believed the event, which lasted from November 2019 to February 2020, was a portent of doom signaling the star’s upcoming explosion. Then the …

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