Gemini North telescope in Hawai‘i uncovers hidden companion to Betelgeuse, shedding light on ancient stellar mystery. Using ...

The star is Betelgeuse, a red supergiant in the constellation Orion. The asteroid is 319 Leona, a slowly rotating, oblong space rock in the main asteroid belt between Mars and Jupiter.

Betelgeuse needs no introduction. Besides having its name borrowed by the ghost with the most, this 10-million-year-old red ...

More recently, astronomers have proposed a theory for its volatile nature, which explains the star's seemingly erratic changes in brightness. They've suggested an unseen companion star orbiting ...

Betelgeuse, one of the brightest stars in the night sky, may not be alone. And its potential companion may be responsible for one of the star’s enduring mysteries.

For decades the reddish glow of Betelgeuse has puzzled astronomers, but researchers believe they have now found the reason ...

Betelgeuse, the left “shoulder” of Orion, has always been a star of intrigue. Look at it long enough (and we mean generations-long), and you’ll notice its strange pattern: dimming and ...