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Relativity

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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.

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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