At 225 solar masses, this gargantuan merger of two black holes challenges our thinking on these famously elusive objects.

The massive black hole has been dubbed GW231123. Its unusual size and behavior is challenging scientists' understanding of black hole formation, Hannam said. Previously, the largest known black hole ...

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

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

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

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 ...

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

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 ...

The behavior and size of the black hole "pushes the limits of" current theoretical models and existing gravitational-wave detection technology, the LIGO-Virgo-KAGRA Collaboration said.

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

Astronomers have detected the most massive black hole merger ever observed, challenging stellar evolution and black hole ...

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