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

The Trump administration has called for shutting down either a Tri-Cities, WA, or Louisiana observatory that work in tandem.

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

Scientists have detected the merger of the most massive black holes ever observed with gravitational waves, using the US National Science Foundation-funded (NSF) LIGO Hanford and Livingston ...

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 ...

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, ...

A collaboration between humanity’s three gravitational wave detectors have identified a black hole merger event that created ...

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 ...

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.

LIGO was operational and taking data over two different periods from 2015 through 2017, with runs of 4 and 9 months in duration, respecively. The latter included an overlap, during the summer of ...