The merger wasn’t just the biggest ever, but also an event so rare that it challenges existing models for black hole genesis.

Shutterstock It’s amazing how much astronomers and astrophysicists are learning about the cosmos each and every day – with ...

A puzzling gravitational wave was detected, and astronomers have determined that it comes from a record-breaking black hole ...

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

Less than a decade since the first detection of gravitational waves—ripples in spacetime itself—proposed budget cuts threaten ...

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

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

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

For now, the LIGO team cannot localize where these black holes merge. But as more detectors come online in Europe, Japan and India, researchers will be better able to triangulate the sources.

That tiny time shift, arising from the fact that LIGO's (and Virgo's, and KAGRA's) arms compress by about 0.01% the width of a proton, is presently being used to find dozens of new merger events ...

When LIGO detected gravitational waves for the first time, we were delighted, but we weren't surprised. Theorists had calculated exactly the type of LIGO-sensitive signal that should result from ...