Betelgeuse's brightness fluctuations may be caused by a companion star, "Betelbuddy," according to recent research.

A recent study suggests that Betelgeuse, the 10th-brightest star, may have a companion star, dubbed "Betelbuddy," influencing its brightness fluctuations. Astrophysicists believe this companion star clears light-blocking dust, causing Betelgeuse to appear brighter at times. This finding challenges previous theories that linked the star's pulsations to internal changes or an imminent supernova. Researchers plan to conduct further observations to confirm Betelbuddy's existence.

October 22, 2024
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