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Gravitation

General Relativity Gravitational Effects Gravitational Lensing Black Hole Physics Gravitational Forces Mass Distribution Cosmic Interactions Spacetime Tidal Forces Cosmology

NIST Replicates Classic Gravity Test, Reports Lower Value for G

The carefully controlled result adds a new data point without settling the long-running gap between precision measurements.

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

Study Links Self-Interacting Dark Matter Clumps to Three Cosmic Puzzles

Distant Quasar Defies Models With 13× Eddington Growth and Powerful Jets

Andromeda Star Vanishes Without a Supernova as Study Identifies Likely Black-Hole Birth

Science Study Details Andromeda Star’s Disappearance, Pointing to Black Hole Birth

Astronomers Report First Unambiguous Failed Supernova in Andromeda

Webb Produces Sharpest Contiguous Map of Dark Matter in COSMOS-Web Field

Webb Delivers Sharpest Dark-Matter Map, Revealing the Universe’s Hidden Scaffold

JWST Produces Most Detailed Dark-Matter Map to Date

DES Year 6 Delivers Precise 3×2pt Cosmology With Mild CMB Discrepancy

Supermassive Black Hole in J1007+3540 Restarts Jets After 100 Million Years

JWST’s ‘Little Red Dots’ Are Young Black Holes Shrouded in Gas, Nature Study Finds

Astronomers Make First Direct Mass Measurement of a Rogue Planet

NIST Finds Mars Clocks Run 477 Microseconds Faster Per Earth Day

Study Calculates How Tiny Black Holes Could Injure Humans—and Why Encounters Are Virtually Impossible

New Framework Turns Black-Hole Shadows Into Tests of Gravity

Record Black Hole Flare Shone With the Light of 10 Trillion Suns From 10 Billion Light-Years Away

Dark Matter’s Motion Matches Gravity, Study Caps Any Extra Force at 7%

Global VLBI Detects Lowest-Mass Dark Object at Cosmological Distance