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

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

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, a team of researchers has detected a cosmic merger of unprecedented ...

Astrophysicists have analyzed two merging black holes; the team's best models suggest that at least one, if not both, of the ...

A short-lived ripple in space-time revealed that two black holes merged into a giant black hole with the mass of 225 suns ...

The future of at least one of the U.S. LIGO observatories is in jeopardy as deep cuts to science programs are proposed by the ...

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

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

Gravitational-wave detectors have captured their biggest spectacle yet: two gargantuan, rapidly spinning black holes likely forged by earlier smash-ups fused into a 225-solar-mass titan, GW231123. The ...

Two colossal black holes among the most massive ever seen collided in deep space, creating gravitational waves that rippled ...

L ast month, work began on the world’s first space-based gravitational wave detector. The European Space Agency and partner ...