Betelgeuse Will Explode Someday, but WHEN?

Scientists Got Betelgeuse Completely Wrong: The Companion Star Discovery

Scientists Got Betelgeuse Completely Wrong: The Companion Star DiscoveryPhoenix, Arizona. It's January 10, 2026, and something extraordinary is about to happen in the conference hall of the 247th meeting of the American Astronomical Society. Credit to: Insane CuriosityScientists Got Betelgeuse Completely Wrong: The Companion Star DiscoveryPhoenix, Arizona. It's January 10, 2026, and something extraordinary is about to happen in the conference ha…

Betelgeuse will explode someday, but WHEN?

Artist’s concept of the old red supergiant star Betelgeuse as a supernova, or exploding star. Stars like Betelgeuse are thought to dim dramatically before they explode. Will it undergo a Great Dimming again as it did in 2019-2020? What will happen after that? Image via Royal Astronomical Society/ ESO/ L. Calçada. EarthSky’s 2026 lunar calendar is available now. Get yours today! Makes a great gift. Will Betelgeuse explode soon? Betelgeuse is the …