Nearly every galaxy has a supermassive black hole in its core. Whether the black hole forms first and then the galaxy around ...

Astronomers have obtained the sharpest-ever X-ray spectrum of an iconic active galaxy, providing the most accurate, precise ...

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

The black hole is located in galaxy QSO1, seemingly without any stars around it, which defies the long-held idea that black ...

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 ...

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

A supermassive black hole that’s 10 million times the mass of the Sun is hurtling through space, leaving a trail of gas that’s spawning newborn stars in its wake. Astronomers have long theorized about ...

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

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

A monstrous black hole in a distant galaxy has earned itself a nickname worthy of a science-fiction horror movie for its gluttonous feasting on any stars that dare get near. Meet "Space Jaws." NASA ...

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 – ...