Although the hypothesis needs visual confirmation, a second star wouldn’t be atypical for a red supergiant like Betelgeuse, ...

However you pronounce it, its unexpected dimming draws even more attention to this red supergiant variable star in Orion. It has a few cycles of variability. One of them occurs over a 2,170 day ...

When Betelgeuse, a red supergiant star in the constellation Orion, eventually goes supernova—likely within the next 100,000 years—the night sky will light up as if a second sun appeared ...