In a galaxy 500 million light-years away, two supermassive black holes could merge, spreading gravitational waves across the ...

An artistic impression of the black hole jets from Mrk 501. (Emma Kun/HUN-REN Konkoly Observatory/Made with the support of AI ...

A growing mystery in astronomy is the presence of gargantuan black holes—some weighing as much as a billion suns—existing ...

The black hole formed when the universe was only 700 million years old.

Supermassive black holes literally don’t add up. Astrophysicists know it takes more time than is mathematically possible for ...

Supermassive black holes are among the most enigmatic objects in the universe. They typically weigh millions or even billions ...

A supermassive black hole binary system (two black holes orbiting each other) has been directly identified in the final ...

At the center of the galaxy Markarian 501, two black holes appear to orbiting each other – and they could collide in less ...

"It is fascinating that an active galactic nucleus can change its brightness so dramatically over such a short period of time ...

A black hole awoke after 100 million years and triggered a massive cosmic eruption that is warping its entire galaxy.

New research describes an unexpected double jet in a distant galaxy, revealing a pair of supermassive black holes on the ...