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 ...

Add Yahoo as a preferred source to see more of our stories on Google. This artist’s concept shows the red supergiant star Betelgeuse and an orbiting companion star creating a wake in the larger object ...

The small, furtive companion of one of the brightest stars in Earth's night sky has just turned out to be something no one suspected. Instead of being the kind of object astronomers expected to find ...

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 ...

Astronomers have discovered a companion star in an incredibly tight orbit around Betelgeuse, using the NASA-NSF-funded ‘Alopeke instrument on the Gemini North telescope. Betelgeuse, one of the most ...