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General Relativity

Time Dilation Einstein's Theories Einstein's Theory Einstein Gravitational Wave Detection Albert Einstein Closed Time-like Curves Accretion Models Black Hole Mergers Time Measurement

Physicists Propose Optical Clock Tests for Quantum Time in Peer‑Reviewed Study

The proposal maps a practical route to test quantum signatures of time with existing atomic clocks.

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

Superluminous Supernova’s ‘Chirp’ Tied to Tilted Magnetar and Frame-Dragging

Breakthrough Listen Reports Candidate Millisecond Pulsar Near Sagittarius A*

Record 225-Solar-Mass Black Hole Merger Confirmed by LIGO-Virgo-KAGRA Network

Entangled Clock Network Enables First Test of Quantum Mechanics in Curved Spacetime

Most Massive Black Hole Merger Confirmed by LIGO-Virgo-KAGRA Yields 225-Solar-Mass Remnant

LIGO-Virgo-KAGRA Unveils Record 225-Solar-Mass Black Hole from Mass-Gap Merger

Berlin Observatory Prepares Summer Festival Marking Relativity’s 110th Anniversary

Atomic Clocks Installed on ISS Begin 30-Month Physics Experiment

ESA's ACES Mission Launches to Test Einstein's Theory of Relativity

Physicists Propose Rotating Universe to Resolve Hubble Tension

Scientists Confirm Time Passes Faster on the Moon Than on Earth

Extragalactic Star Discovered Orbiting Milky Way's Supermassive Black Hole