Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. ALMA's image of the ejected ...

Astronomers have discovered a vast and expanding bubble of gas and dust surrounding a red supergiant star—the largest structure of its kind ever seen in the Milky Way. The bubble, which contains as ...

Astronomers studying WOH G64, one of the largest known stars beyond the Milky Way, have confirmed it still burns as a red supergiant despite dramatic fading, weakened pulsations, and spectral shifts ...