Einstein believed that black holes didn't really exist. But they do: that much we know. We don't know much else about them.

When black holes collide into each other, they produce gravitational waves, as scientists learned in 2015 after recording a pair of stellar-mass black holes colliding for the first time.

Extreme cosmic events such as colliding black holes or the explosions of stars can cause ripples in spacetime, so-called ...

When the gravitational wave rolled by, it tickled the detectors, providing the unmistakable signature of colliding black holes on the other side of the universe and marking the beginning of a new ...

Whether a galactic environment has the right conditions for habitable planets to form could depend on how the black hole in ...

A new paper provides scientists with a groundbreaking tool for understanding cataclysmic events. Physicist Glennys Farrar has ...

Buonanno's division on the prediction of the gravitational waves that are generated when black holes collide. Albert Einstein predicted the existence of gravitational waves 100 years ago. These tiny ...

When two enormous black holes collide in deep space, they send shockwaves rippling across the universe. These shockwaves, called gravitational waves, bend and stretch the fabric of space itself.

Black holes are regions in space where an enormous amount of mass is packed into a tiny volume. This creates a gravitational pull so strong that not even light can escape. They are created when giant ...

This simulation shows two black holes colliding near the speed of light, revealing the mysterious physics of what one astrophysicist calls “one of the most violent events you can imagine in the ...

WATCH: Here’s the first image of the black hole at the center of our galaxy The world got a look Thursday at the first wild but fuzzy image of the supermassive black hole at the center of our ...