Massive stars about eight times more massive than the sun explode as supernovae at the end of their lives. The explosions, ...

Astronomers have watched a massive star vanish in the night sky, only to be replaced by a black hole. The supergiant star M31 ...

The outward force from its fusion can no longer counteract the star's powerful gravity, and the star collapses in on itself.

Astronomers have lost a star. This is not carelessness, but the possible discovery of a rare stellar event in the Andromeda ...

Astronomers have witnessed a rare cosmic event, where a massive star in the Andromeda galaxy (M31) has transformed directly into a black hole, without the usual supernova explosion. The phenomenon ...

Now that may sound big, but Sagittarius A* is small compared to other supermassive black holes. Take the one at the center of our neighbor the Andromeda galaxy, which has a diameter of 516 million ...

A star that winked out of view could be a “failed supernova,” a stellar explosion that petered out instead of fully detonating, a new study reports. If real, the failed supernova would mark the birth ...

Active galaxy—A galaxy with an unusually strong output of energy, thought to be powered by a supermassive black hole in its core. Andromeda Galaxy—The nearest large spiral galaxy to the Milky ...

speculates what it might take for the area around the black hole to be active again. explains that in time, galactic cannibalism will occur when the Andromeda galaxy is 2 million light years away ...

A neighboring galaxy, Andromeda, houses one with as much mass as 100 million suns. Other galaxies are thought to contain billion-sun black holes, and some even ten-billion-sun monsters.

Wednesday, May 15, 2024: A new Hubble image highlights the intricacies of a distant galaxy ... of Andromeda are getting swept within. Inside the central region? A supermassive black hole lurks.

The spiral arms of nearby galaxy Messier 81 is captured by NASA's Spitzer Space Telescope. This galaxy is easily visible ...