What happened
The Simons Foundation reports that the latest LIGO-Virgo-KAGRA gravitational-wave catalog adds 161 newly observed black hole mergers, nearly doubling the number identified. Detector upgrades now let the network capture as many as three to four gravitational-wave signals per week.
That matters because discovery is becoming statistical. With enough events, researchers can start separating black hole populations, testing formation pathways, refining independent measurements of cosmic expansion, and checking general relativity at scales that used to be out of reach.
The breakthrough to watch is the instrument becoming a pipeline. Once the universe starts producing weekly data, theory has to become much more operational.
Source
Reported by Black Hole Discoveries Abound in Newly Released LIGO-Virgo Catalog via simonsfoundation.org, published May 26, 2026.