Betelgeuse is one of the night sky's brightest stars and easily can be observed from Earth with the naked eye. Its fluctuations in brightness have long puzzled astronomers, however. Now, researchers ...

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 ...

The yearslong dimming and brightening pattern of the huge star Betelgeuse (don’t worry—that’s just the second time we’ve said it!) may be due to a much tinier star orbiting the red supergiant, a team ...

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.

In a rare cosmic event, an asteroid will eclipse Betelgeuse on December 11, causing a brief but significant disappearance of this bright, red star. Reading time 3 minutes The bright star Betelgeuse, a ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Go outside tonight when it gets dark and look to the ...

Whenever we enter Valentine’s season, astronomers are sometimes asked about possible Valentine’s Day stars.  To answer this ...

One of the biggest and brightest stars in the night sky will momentarily vanish as an asteroid passes in front of it to produce a one-of-a-kind eclipse. The event should be visible to millions of ...