Then, they pieced together a record of the X-ray light produced by a supermassive black hole in the Andromeda galaxy called M31 star or M31*. Their research provides insight into the unique ...

Webb detected rare neon gas in M83. This may signal a hidden black hole, challenging the idea that the galaxy has only ...

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 ...

Astronomers have confirmed a wandering black hole, about seven times the mass of the Sun, 5,000 light-years from Earth.

Just when you finally start to get a fix on big black holes—like the supermassive one indicated by the blue dot in this NASA X-ray image of the Andromeda Galaxy—astrophysicists come along with ...

In 1923, Edwin Hubble captured a pulsing star within the Andromeda Galaxy on ... time as we know it breaks down. A black hole devours material from its galaxy, and a border known as the event ...

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 ...

Astronomers have detected an erupting supermassive black hole producing some of the largest jets ever seen bursting from a galaxy with the same shape as our own. The galaxy in question also ...

the central supermassive black holes in each galaxy will get close enough to each other to meet and merge. By that point, the Milky Way and Andromeda galaxies - two, separate spiral galaxies ...