What makes the star remarkable is its location. Siwarha appears to orbit so close that it never leaves Betelgeuse’s ...

Astronomers may have finally solved one of the weirdest mysteries of our night sky: why Betelgeuse, a massive star in the ...

Astronomers at the Center for Astrophysics | Harvard & Smithsonian have uncovered direct evidence that the red supergiant ...

Astronomers may have finally solved one of the weirdest mysteries of our night sky: why Betelgeuse, a massive star in the constellation Orion, seems to fade and brig ...

Betelgeuse is one of the best-known stars in the night sky, as well as the easiest to find. New examinations of this behemoth star suggest it is both smaller — and closer — than astronomers believed.

Betelgeuse is one of the brightest stars in the night sky and a familiar landmark in the constellation Orion. It has also ...

Betelgeuse is one of the brightest stars in the night sky. Credit: Alan Dyer / VWPics / Universal Images Group via Getty Images A brilliant red star beaming through our night sky is Betelgeuse, an ...

Learn how Betelgeuse's atmosphere has been altered by its companion star, which has left behind a trail of expanding gas.

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 best ...