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Over time, Betelgeuse changed color. Now it’s also lost its rhythm

Ancient and modern observations detail a couple of big changes in the star’s personality

image of a bright red star on the left (Betelgeuse) amid the rest of the constellation Orion (other stars in blue)

Betelgeuse, the bright red star (left) in the constellation Orion, has changed its look in both the ancient and recent past.

Chasing Light — photography by James Stone james-stone.com/Moment/Getty Images

By Lisa Grossman

- More than 2 years ago

The star Betelgeuse has always been a diva.