The pair are located in the galaxy Markarian 501, around 500 million light-years from Earth ...

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

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

Using observations gathered by the James Webb Space Telescope (JWST), an international team of astronomers have revealed that ...

Scientists are getting a clearer look at what happens when a black hole tears a star apart and why each cosmic flare looks ...

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

Supermassive black holes at the centers of galaxies are one of the most active fields of research in astronomy. In order to accumulate their enormous masses, they must merge with each other. A ...

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

Here’s what you’ll learn when you read this story: Black holes usually form from stars that burn out and collapse in on themselves, but that cannot explain the red spark of light that could be a ...

Supermassive black holes literally don’t add up. Astrophysicists know it takes more time than is mathematically possible for one of them to reach its incomprehensible proportions via standard gas ...

Learn how shifting jets in galaxy Mrk 501 exposed a pair of orbiting supermassive black holes nearing collision.

A nearby active galaxy called VV 340a offers a dramatic look at how a supermassive black hole can reshape its entire host. Astronomers observed a relatively weak but restless jet blasting outward from ...