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Relativity

General Relativity Time Dilation Einstein's Theories Time Measurement Special Relativity Gravitational Waves Gravitational Effects Relativistic Jets Light Speed Spacetime

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.

Astronomers Measure Cygnus X-1’s ‘Dancing’ Black Hole Jets at 10,000 Suns of Power

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*

Dark Matter Core Model Challenges Black Hole at Milky Way’s Center

Star-Shredding Black Hole’s Radio Jet Still Surging, With Peak Predicted Around 2027

Early-Universe Quasar Defies Models With 13 Times the Eddington Limit, Bright X-Rays and a Radio Jet

NIST Finds Mars Clocks Run 477 Microseconds Faster Per Earth Day

Voyager 1 Nears One Light-Day From Earth, With Two-Day Command Cycles Ahead

Record-Setting Day-Long GRB 250702B Confirmed at z = 1.036 as Origin Remains Unsettled

LIGO’s Loudest Black-Hole Merger Confirms Hawking’s Area Theorem and Kerr Predictions

Day-Long, Repeating Gamma-Ray Burst From Distant Galaxy Challenges Standard Models

Spaceflight Accelerates Aging and Genomic Instability in Human Blood Stem Cells

First Frontal VLBA Image of Blazar PKS 1424+240 Reveals Ring-Shaped Magnetic Field

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

Physicist Proposes Three-Dimensional Time as Universe’s Fundamental Framework