Image missing.
Scientists Are Pretty Sure Betelgeuse Has Been Hiding Something Big

created: July 28, 2025, 6 p.m. | updated: Aug. 4, 2025, 11:20 a.m.

Because Betelgeuse ejected a massive amount of gas and dust when it first made headlines, a companion—which was suspected for centuries—wouldn’t have been detectable. Now, it seems that the companion of Betelgeuse may have finally been detected through an advanced imaging technique, and will be more visible when it orbits further away from its host. Though Betelgeuse has been thought to have a companion star for hundreds of years, the monster’s intense luminosity (up to 14,000 times brighter than the Sun) blocked out anything in its vicinity. Shifts in the velocity, angle, and brightness of Betelgeuse previously sparked the idea that a hypothetical companion star may be behind some of the perturbations scientists see when observing the star. The companion star also has a name (and no, it isn’t Lydia).

4 months, 2 weeks ago: Latest Content - Popular Mechanics