A red supergiant star cataloged as Westerlund 1-26, or W26, sits inside a young stellar cluster roughly 12,000 light-years ...

Stellar size is measured against the Sun, and the biggest known stars dwarf it by a factor of more than a thousand. Their ...

Betelgeuse, Betelgeuse, Betelgeuse: somewhat like summoning the homophonically named movie character, astronomers had hoped that repeated studies of this iconic red supergiant star would reveal its ...

A century of hints has suggested the famed red supergiant had a star pal but seeing it amid Betelgeuse’s brightness has been ...

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 have discovered a companion star in an incredibly tight orbit around Betelgeuse, using the NASA-NSF-funded ‘Alopeke instrument on the Gemini North telescope. Betelgeuse, one of the most ...

At long last, astronomers have firm evidence that Betelgeuse, one of the most famous stars in the night sky, is not alone.

Astronomers have discovered that Betelgeuse, a colossal red supergiant star in Orion, has a companion star. This significant finding indicates Betelgeuse is part of a binary system, with its companion ...

The main image at left shows a combined Webb and Hubble view of spiral galaxy NGC 1637, with the region of interest in the top right. The remaining three panels show a detailed view of a red ...

Red supergiants are a class of star that end their lives in supernova explosions. Their lifecycles are not fully understood, partly due to difficulties in measuring their temperatures. For the first ...

Red supergiant DFK 52 and its surroundings as seen by ALMA. The vast, complex bubble blown by this extreme star is about 1.4 light years across, thousands of times wider than our Solar System. ALMA ...