The largest black hole collision ever recorded has scientists' jaws on the floor — and scratching their heads.

Using ripples in space-time predicted by Einstein, researchers detected a cosmic merger of unprecedented proportions. A ...

A collision observed between two black holes, each more massive than a hundred suns, is the largest merger of its kind ever ...

Twin orbs of superhot plasma at the Milky Way's center known as the "Fermi bubbles" contain inexplicable clouds of cold ...

A U.S. gravitational wave detector spotted a collision between fast-spinning “forbidden” black holes that challenge physics ...

The massive black hole has been dubbed GW231123. Its unusual size and behavior is challenging scientists' understanding of ...

“It’s the most massive [merger] so far,” says Mark Hannam, a physicist at Cardiff University, UK, and part of the LVK ...

Yale astronomer Pieter van Dokkum and a team of researchers have discovered an object in space they call the "Infinity" ...

A new method to analyze gravitational-wave data could transform how we study some of the universe's most extreme events—black ...

Astronomers have detected the signal of a colossal black hole in deep space that likely formed when two already-large black ...

It took less than a second for the space observatory hidden in Louisiana woods to detect a black hole that is that is ...

Discoveries keep pouring out of the James Webb Space Telescope (JWST). Researchers observed an unusual cluster, which they ...