Some 1.2 billion light-years from Earth, a massive event is unfolding on cosmic scales. There, not two, but three galaxies ...

Astronomers have found a system of three supermassive black holes, all actively feeding, that appear to be combining into a ...

New XRISM X-ray observations reveal details of gas near a supermassive black hole in galaxy MCG–6-30-15, helping scientists better measure black hole spin and behavior ...

Astronomers were puzzled by a black hole around 50 million times the mass of the sun with no stars, spotted by the James Webb ...

A supermassive black hole in the spiral galaxy NGC 3783 just delivered an X-ray surprise that astronomers have never watched ...

Using the ALMA telescope in Chile, an international research team examined seven pairs of merging galaxies to come to the ...

In a patch of sky about 1. 2 billion light-years from Earth, astronomers have found a cosmic rarity: three galaxies caught in ...

New observations reveal that the relationship between ultraviolet and X-ray light in quasars has changed over billions of ...

Scientists say they've spotted the first runaway supermassive black hole that's rocketing away from its home at a staggering speed.

A supermassive black hole that’s 10 million times the mass of the Sun is hurtling through space, leaving a trail of gas ...

Supermassive black holes, which can possess millions to billions of times the mass of our Sun, are believed to grow by consuming material and merging with other black holes during galactic collisions.

Some galaxies could grow so large by consuming one star from a binary system. April 8, 2012— -- For years, astronomers have puzzled over the diet needed to bulk up supermassive black holes – ...