Betelgeuse is one of the brightest stars in the night sky, and the closest red supergiant to Earth. It has an enormous volume ...

Betelgeuse, the red supergiant star closest to Earth, has finally been proven to have a companion star in observations from ...

The discovery is the first time such a close companion star has been detected orbiting a supergiant, according to a statement from the US research centre NOIRLab, which operates the Gemini Observatory ...