Named “Siwarha,” Arabic for “her bracelet,” the companion lives up to its name by appearing as a small adornment circling a giant. The data showed that Siwarha is about 1.5 times the mass of the Sun ...

Betelgeuse is the star that everybody can't wait to see blow up, preferably sooner rather than later. That's because it's a red supergiant on the verge of becoming a supernova and there hasn't been ...

For more than a century, Betelgeuse has looked like a star with a secret. It swells and fades on a six-year rhythm that never quite made sense. The star, about 650 light-years away in space, is old, ...

The bizarre dimming patterns of Betelgeuse, an enormous red supergiant star in the constellation Orion, have bewildered astronomers for decades. Now, researchers are closer than ever to proving that a ...

After long speculation, a team of astrophysicists from NASA published their research, reporting that Betelgeuse, the 10th brightest star in our night sky, is orbited by a very close companion star now ...

For over a hundred years, astronomers have puzzled over strange changes in the brightness and motion of Betelgeuse, the closest red supergiant to Earth. Located in the shoulder of Orion, this colossal ...