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Quasars

Merging Quasars Supermassive Black Holes Active Galactic Nuclei Galaxy Interactions OJ287 Cosmic Mapping J1601+3102 Baryon Acoustic Oscillations Galactic Mapping Black Holes Spiral Galaxies OJ 287 Spectroscopic Surveys Matter Jets Light Deflection Massive Objects Blue-excess Hot Dust-Obscured Galaxies Gravitational Lensing Systems Star Formation Galaxy Distribution Cosmic Phenomena Galactic Interactions Galaxy Mergers HerS-3 Gravitational Lensing Cosmological Measurements Early Universe 3D Mapping Spin Distribution

DESI Finishes 5-Year Survey With Record 3D Map of 47 Million Galaxies

A full 2027 analysis could confirm hints that cosmic acceleration is weakening.

DESI Completes Five-Year Survey With Record 3D Map of the Universe

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

Gravitational-Lens Time Delays Deliver New Hubble Constant, Deepening the Tension

First Radio Image Shows Two Supermassive Black Holes Orbiting in Quasar OJ287

First Radio Image Resolves Two Supermassive Black Holes in Quasar OJ287

Astronomers Capture First Direct Evidence of Quasar Radiation Disrupting Neighboring Galaxy

Astronomers Capture First Evidence of Quasar Radiation Halting Star Formation in Galaxy Collision