LIGO Detects Biggest Black Hole Merger Ever
Scientists at the LIGO Virgo KAGRA Collaboration announced the detection of GW231123, the most massive black hole merger observed so far, on November 23, 2023. This event, revealed in July 2025, involved two huge black holes colliding to form a new one about 225 times the mass of our sun, raising big questions about how stars and black holes form. What Happened in the Merger The gravitational wave signal came…










