Astronomers find strongest evidence yet that Betelgeuse has a companion

At long last, astronomers have firm evidence that Betelgeuse, one of the most famous stars in the night sky, is not alone.

Using the European Southern Observatory's Very Large Telescope (ESO's VLT), a team led by French researcher Miguel Montargès obtained the clearest image yet of what is likely Betelgeuse B, the star orbiting Betelgeuse.

"This is the conclusion of a century-long quest," Montargès says. ...