Science ❯ Astrophysics ❯ Observational Astronomy

LIGO-Virgo-KAGRA

GW231123 Event Gravitational Wave Detection

Twin Black-Hole Mergers Display Extreme Spins, Strengthen Einstein’s Theory, and Point to Second-Generation Origins

Peer-reviewed analyses turn two late-2024 gravitational-wave detections into some of the sharpest tests of general relativity to date.