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

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

Supermassive black holes at the centers of galaxies are one of the most active fields of research in astronomy. In order to ...

"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.

A colossal “cosmic volcano” has erupted in deep space, as a supermassive black hole in galaxy J1007+3540 roars back to life ...

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

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

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

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

Astronomers studied 1.3 million galaxies and 8,000 X-ray-spewing supermassive black holes to find out why these gravitational ...

A supermassive black hole in the spiral galaxy NGC 3783 just delivered an X-ray surprise that astronomers have never watched unfold so quickly. Using the European Space Agency’s XMM-Newton and the ...