Science ❯ Astrophysics

Cosmology

Galaxies Galaxy Formation Big Bang Early Universe Dark Matter Galaxy Evolution Galactic Evolution Cosmic Events Universe Structure Universe Evolution

Hubble and Gaia Reveal Milky Way's Earliest Major Merger

The study finds a roughly 500-million-solar-mass dwarf galaxy supplied stars, gas plus dark matter that helped shape the young Milky Way's growth.

Study Finds Webb’s Little Red Dots Often Hide Obscured Black Holes and Faint Hosts

Astronomers Report Strong X-Ray Polarization From Magnetar That May Show Vacuum Birefringence

JWST Identifies a Candidate ‘Black Hole Star’ at Cosmic Dawn

Astronomers Identify a Black Hole Star at Cosmic Dawn

Astronomers Find First Globular-Cluster Stellar Stream Beyond the Milky Way

Gas Streamer Likely Tilted GW Orionis' Triple-Star Disk

Rare X‑Ray Flash Reveals Faint Shock Breakout in Type Ic‑BL Supernova

Hubble Study Finds Andromeda’s Star Formation Has Fell to a Fraction of Its Former Rate

Astronomers Report Jupiter‑Mass Companion Orbiting Brown Dwarf in CD‑35 2722 System

Astronomers Identify Candidate Binary Supernova Pair Near Jellyfish Nebula

Webb Sees Gas Filaments Feed Black Hole’s Rotating Nuclear Disk

Astronomers Confirm Four Hidden White Dwarfs Within 65 Light‑Years

Off‑Axis Relativistic Jet Lights Up Dwarf Galaxy in Unusual Transient

VLT Confirms Ancient, Non‑Solar Chemistry in Interstellar Comet 3I/ATLAS

ZWO Astronomy Photographer of the Year Releases 29-Image Shortlist

TESS Detects First Planet by Gravitational Microlensing

Rubin Observatory Begins 10‑Year Survey of the Southern Sky

JWST Shows Jupiter‑Size Planet Migrated Into Close Orbit Around a White Dwarf

CERN Shuts Down LHC to Begin Four-Year Upgrade to High‑Luminosity Machine