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General Relativity

Black Holes Einstein's Theories Black Hole Theories Hawking's Area Law Hawking's Theorems Hawking's Theories Spacetime Fabric Black Hole Formation Gravitational Fields Entropy Hawking Radiation Einstein's Predictions Quantum Physics Einstein's Theory Gravitational Wave Detection Black Hole Thermodynamics Kerr Metric Primordial Black Holes Alternative Gravity Models Closed Timelike Curves Quantum Gravity Warp Drive Cosmic Models Cosmology

New Framework Turns Black-Hole Shadows Into Tests of Gravity

Simulations quantify the imaging thresholds future arrays must reach to reveal deviations from general relativity.

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