Here's how a new discovery sheds light on a cosmic mystery.

Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.

Betelgeuse's companion star is 1.5 times larger than the sun. But all of that extra attention has led to another remarkable find. As it turns out, Betegeuse isn’t alone—it actually has a nearby ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. This image of Betelgeuse is a color composite made from exposures from the Digitized Sky Survey 2 ...

Betelgeuse is the star that everybody can't wait to see blow up, preferably sooner rather than later. That's because it's a ...

Astronomers have uncovered the long-hidden cause behind Betelgeuse’s strange behavior: a small companion star carving a visible wake through the giant’s vast atmosphere. Using nearly eight years of ...

But this orbital dance has a darker future. Over time, tidal forces continue to drain energy from Siwarha’s orbit, pulling it closer to the red supergiant. Eventually, the smaller star will spiral ...

(CNN) — Astronomers have observed what they believe to be a never-before-seen companion star orbiting Betelgeuse, a pulsating red supergiant star in the shoulder of the Orion constellation. One of the ...