Science ❯ Astronomy ❯ Astrophysics

Galaxies

Active Galactic Nuclei Milky Way Supermassive Black Holes Early Universe Galaxy Formation High-Redshift Galaxies Black Holes Quasars Quiescent Galaxies Galaxy Mergers Gravitational Lensing Dwarf Galaxies Seyfert Galaxies Star Formation M87 Galaxy Evolution Large-Scale Structure Compact Galaxies Interstellar Medium Narrow Line Seyfert 1 Emission-line Galaxies Photometric Redshift Compact Objects Galaxy Collisions Sextans A Hidden Galaxies Radio-loud Galaxies Distant Galaxies Galactic Interactions NGC 5253 Sombrero Galaxy Anomalous Galaxies Hydrogen Gas Halos Cosmology HELM Galaxies Anomalous Objects Lyman-Alpha Emission NGC 4141 Starburst Galaxies Circumgalactic Medium Stellar Dynamics Supernovae Galaxy M87 Markarian 501 Starless Dark Matter Halos Lyman Continuum Escape Lyman-alpha Nebulae Jellyfish Galaxies Early Galaxies Gas Outflows Anomalies NGC 1052 Dark Matter Star-Forming Galaxies Spectral Energy Distribution High-redshift Galaxies Black Hole Stars Atomic Hydrogen Bullet Cluster Survey Techniques

Roman Space Telescope Cleared for Shipment as Teams Move Toward September Launch Window

The 2.4‑meter primary mirror passed final inspection, allowing barge transport to Kennedy Space Center for launch processing before final reviews.

Study Points to Tight Supermassive Black Hole Binary in Markarian 501

HETDEX Maps 33,000 Hydrogen Halos Around Early Galaxies

Rubin Observatory Goes Live With Real-Time Sky Alerts, Sending 800,000 in First Night

JWST Spots Most Distant ‘Jellyfish’ Galaxy Candidate at Redshift 1.156

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

AI Trawl of Hubble Archive Uncovers 1,300 Cosmic Anomalies, Including 800+ Never Documented

Precessing Black Hole Jet in VV 340a Drives Vast Outflow in Young Disk Galaxy

JWST and Chandra Reveal Colliding Galaxies IC 2163 and NGC 2207

NASA Completes Roman Space Telescope Construction as Final Testing Begins

AI-HPC Breakthrough Delivers First Star-by-Star Milky Way Simulation

Global VLBI Detects Lowest-Mass Dark Object at Cosmological Distance

JWST Study Proposes ‘Black Hole Stars’ to Explain Mysterious Early‑Universe Red Dots

Brightest Fast Radio Burst Precisely Located in Nearby Galaxy Using CHIME Outriggers

Infinity Galaxy’s Newborn Black Hole Shows Evidence of Direct Collapse

Webb Pinpoints Bullet Cluster’s Mass and Dark Matter Distribution

Webb Peers Into Cosmic Dawn With Deepest Single-Target View of Abell S1063