Betelgeuse, the bright reddish star that marks Orion's shoulder, has kept skywatchers company for thousands of years — and it may have had company of its own the whole time.
Astronomers say they've captured the clearest image yet of a faint star orbiting tightly around Betelgeuse, in what they're calling the strongest evidence so far that the famous red supergiant isn't flying solo. The find was announced by the European Southern Observatory (ESO) on Tuesday (July 28) and detailed in a new paper in the journal Astronomy & Astrophysics.
