Supergiant Atmosphere of Antares Revealed by Radio Telescopes

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Press release, graphics here :-
https://public.nrao.edu/news/supergiant-atmosphere-of-antares-revealed-by-radio-telescopes/

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Isn't Antares dying? In 2017 Antares was in the final stage of stellar evolution, the stage of a red supergiant. It has almost completely exhausted its supply of hydrogen "fuel", expanded sharply, and began to dump the material of its outer shells into open space.