In the nearby Andromeda Galaxy, a massive star bright enough to stand out for years has gone dark. Not in a blaze of glory.

A massive star 2.5 million light-years away simply vanished — and astronomers now know why. Instead of exploding in a supernova, it quietly collapsed into a black hole, shedding its outer layers in a ...

Astronomers have watched a dying star fail to explode as a supernova, instead collapsing into a black hole. The remarkable ...

The team discovered the star by analyzing archival data from NASA’s NEOWISE mission. They used a prediction from the 1970s ...

Astronomers combing through years of images collected by the NEOWISE mission have found the clearest known evidence of a star converting directly to a black hole, without passing through the supernova ...

Astronomers tracked a star that slowly faded instead of exploding. The quiet disappearance may reveal a hidden way black ...

WASHINGTON, Feb 12 (Reuters) - The formation of a black hole can be quite a violent event, with a massive dying star blowing up and some of its remnants collapsing to form an exceptionally dense ...

It is easy to observe when stars explode in a supernova and become a black hole. It is different when they simply collapse.

A mysterious cosmic explosion linked to gravitational waves may reveal a previously unknown type of supernova event - a ...

Merger of two neutron stars in the aftermath of a supernova may have been observed for the first time, though questions ...

Axions are the most likely candidate for enigmatic dark matter that dominates the universe. Astrophysicists are searching for evidence of high-mass axions produced during supernovae. Scientists ...