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

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

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

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

An international team of physicists discovered the largest-ever merger of 2 black holes through a phenomenon known as ...

Learn more about LIGO, the observatory that detected two massive black holes merging, the largest in recorded history.

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 ...

The new black hole has more than 200 times the mass of our sun – and is challenging theories of how objects form in space ...

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

The LIGO Hanford Observatory near the Tri-Cities and its twin in Louisiana detected ripples of time and space passing through ...

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