The Impending Demise of Betelgeuse: A Real-Time Observation.

Betelgeuse, a red supergiant star located around 500 to 600 lightyears away, is glowing at 150% of its normal brightness and cycling between brighter and dimmer at 200-day intervals, twice as fast as usual. Scientists are debating when the star will die in an explosion, with some suggesting it could be at the end of its final life stage, the carbon-burning phase. Betelgeuse is likely to become a supernova in the next 100,000 years, but some experts believe it could happen sooner. The dimming of the star is due to the ejection of a huge matter which turned into dust after cooling down, blocking the star's light.