The red supergiant Betelgeuse likely has a companion star, astronomers have confirmed. Long theorized to share an orbit with Betelgeuse — an extremely bright star that may go supernova in the next few thousand years — a sun-size companion star has finally appeared in unique observations taken with the Gemini North telescope high on Hawaii’s Mauna Kea. If confirmed, the …
Read More »Astronomers share best-ever evidence that Betelgeuse has a secret companion star — and they’ve nicknamed it ‘her bracelet’
