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

It took less than a second for the space observatory hidden in Louisiana woods to detect a black hole that is that is ...

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

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

Long ago, in a galaxy far away, two black holes danced around each other, drawing ever closer until they ended in a cosmic collision that sent ripples through the fabric of spacetime. On September 14, ...

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 ...

LIGO changed that. Last year, the collaboration announced that its twin detectors had picked up a passing distortion in late 2015 caused by two black holes crashing into each other.

A team from Denmark recently analyzed LIGO's data independently, and found something that shouldn't be there. If their analysis is right, what does it all mean?

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 ...

LIGO’s first catch was a pair of colliding black holes, each around 30 times the mass of the sun (SN: 3/5/16, p. 6). The experiment detected vibrations from the merging black holes on ...

LIGO’s twin detectors are placed 3,000 miles apart so that any signals can be verified and triangulated. The designs are virtually identical.