Gravitational waves spotted by LIGO reveal two black holes, 140 and 100 times the mass of the sun, merged to become a 225 solar mass behemoth.

The powerful merger, designated GW231123, produced an extremely large black hole about 225 times the mass of our Sun.

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

How astronomers used gravitational lensing, a space-time trick predicted by Einstein, to detect a black hole measuring 30 ...

Get all the news you need in your inbox each morning. "A black hole is so concentrated that it causes a little deep puncture in space/time. At the end of the puncture, you have a thing ...