Astronomers find strongest evidence yet that Betelgeuse has a companion
Astronomers using the Very Large Telescope have captured the clearest evidence yet of a companion star orbiting the red supergiant Betelgeuse. This discovery potentially explains the star's long-observed periodic brightness variations.
Why it matters
Provides a significant breakthrough in understanding the behavior of one of the most famous stars in the night sky.
edited by Sadie Harley , reviewed by Robert Egan
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