At the beginning of 2020, the astronomical world was on high alert when the massive star Betelgeuse, located in the constellation Orion, began to dim unexpectedly. Its sudden fading sparked widespread ...

In 2020, Betelgeuse dimmed dramatically, prompting theories of an impending supernova. Instead, astronomers uncovered an even ...

The stellar companion may help explain why the brightness of Betelgeuse, the red supergiant, is open to so much variation.