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

Gravitational-wave detectors have captured their biggest spectacle yet: two gargantuan, rapidly spinning black holes likely ...

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

Astronomers have detected the largest black hole merger ever, and it has challenged their understanding of such formations.

In 2015, the Laser Interferometer Gravitational-wave Observatory (LIGO) directly detected gravitational waves, or ripples in space-time, for the first time ever—almost exactly one century after ...

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

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

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

Gravitational wave detectors have "heard" the ripples in space caused by the most massive black hole merger yet. One ...

The powerful merger, designated GW231123, produced an extremely large black hole about 225 times the mass of our Sun.

And LIGO’s second gravitational wave event, GW151226, is great for both! Essentially, on the pessimist’s side, GW151226 makes it all-but-certain that LIGO is picking up genuine gravitational ...

There are two LIGO detectors. One is in Louisiana (only 30 minutes from where I live) and the other is in Washington. Other gravitational wave detectors exist on Earth, but they were not ...