New gravitational wave findings from the LIGO-Virgo-KAGRA Collaboration report the discovery of the largest black hole merger ever. It could lead to evidence of an extremely rare type of black hole.

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

Gravitational waves from most massive black hole collision ever observed challenge existing theories, as scientists suspect black holes were products of earlier mergers - Anadolu Ajansı