A massive star in the Andromeda galaxy brightened in infrared light starting around 2014, then faded from optical view and effectively vanished, in what researchers interpret as a direct collapse into ...

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Astronomers have caught a massive star in the Andromeda Galaxy quietly dying, collapsing into a black hole without producing a supernova, leaving behind little more than a fading trace. The findings ...

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers are used to dramatic endings. When a massive star dies, it usually explodes in a spectacular supernova, briefly ...

Computer simulations carried out by astronomers from the University of Groningen in collaboration with researchers from Germany, France and Sweden show that most of the (dark) matter beyond the Local ...

Astronomers tracked a star in Andromeda as it dimmed and vanished without the usual fiery explosion, offering rare clues to how black holes form.

Astronomers may have witnessed the birth of a brand-new black hole in our neighboring galaxy, offering one of the clearest glimpses yet of how some stars quietly collapse into these cosmic abysses ...