"It's an elegant answer, really, because we thought it was a tiny galaxy full of many separate cold stars, but it's actually, ...

"This tells us that the magnetized plasma swirling near the event horizon is far from static; it’s dynamic and complex, ...

The recoil imparted as two black holes collide has now been measured using gravitational waves. It's the first-ever ...

A decade ago, the first gravitational waves confirmed that black holes collide. Telescopes soon revealed shadows of giants ...

Ten years after the first gravitational wave detection, a new suite of instruments has captured distinctive ringing signals ...

Two black holes collided 1.3 billion light years from Earth, creating a 'ringing,' which in turn allowed astrophysicists to ...

When the "little red dots" were first discovered in 2022, scientists thought the objects might be galaxies as mature as the Milky Way, which is about 13.6 billion years old. That's because galaxies ...

Mathematical quirks of our universe have led some cosmologists wonder whether the cosmos was actually born in a black hole.

Astronomers first thought these red dots were ancient galaxies. They appeared unusually mature for their early universe age.

When black holes collide, they release gravitational waves. The waves contain information on the collision. If one black hole is much heavier, the waves vary with the observation angle.

The James Webb Space Telescope has found a lonely black hole in the early universe that’s as heavy as 50 million suns. A ...

Primordial black holes are hypothetical black holes thought to have formed moments after the Big Bang. Because they ...