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General Relativity

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Largest-Ever Cosmic Test Finds Gravity Falls With Distance as Theory Predicts

The team read tiny shifts in the universe’s oldest light to track how galaxy clusters pull on each other.

Quantum Gravity Model Embeds Inflation in Gravity, Sets Floor for Primordial Waves

ANU Team Demonstrates Bell Correlations in Helium Atoms’ Motion

LIGO–Virgo–KAGRA Unveil Catalog That More Than Doubles Gravitational-Wave Detections

Peer-Reviewed Warp-Drive Model Replaces Exotic Matter With Spacetime Bubbles

New Framework Turns Black-Hole Shadows Into Tests of Gravity

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

Astronomers Measure First Black-Hole Recoil, Tracing Newborn’s 3D Flight From 2019 Merger

Crystal-Clear GW250114 Validates Hawking’s Area Law, Confirms Kerr-Like Remnant

Astrophysicist Proposes Paperclip-Sized Probe to Test Black Hole Physics