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

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

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

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

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

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

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

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

What occurs when the universe plays a cosmic curveball, breaking down long-standing assumptions about how black holes form?

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

New gravitational wave findings from the LIGO-Virgo-KAGRA Collaboration report the discovery of the largest black hole merger ...