Did astronomers just see a star blink out to become a black hole?
SMRTR summary
Astronomers have observed a massive star in the Andromeda galaxy mysteriously vanish without exploding as a supernova, likely collapsing directly into a black hole in a rare "failed supernova" event. The star, about twelve times heavier than our sun, brightened in 2014 before completely disappearing by 2022, leaving behind only a dim reddish blob of ejected gas and dust surrounding a newly formed five-solar-mass black hole.
SMRTR provides this summary for quick context. The original article belongs to Scientific American.
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