Science ❯ Astronomy ❯ Cosmology

Early Universe

Big Bang Galaxy Evolution Galaxy Formation Cosmic Dawn Primordial Black Holes James Webb Space Telescope Star Formation Cosmic Structures Cosmic Evolution Quasars

JWST Directly Weighs a ‘Little Red Dot’ and Finds a 50‑Million‑Sun Black Hole

The direct dynamical measurement supports heavy‑seed formation for some early supermassive black holes.

Chandra Spots First X-Ray Little Red Dot, Pointing to Early Black Hole Growth

Ultra-Faint Dwarf Galaxies Reveal Early-Universe Conditions in New LYRA Simulations

HETDEX Maps 33,000 Hydrogen Halos Around Early Galaxies

Astronomers Identify Most Chemically Pristine Star Ever Observed

ALMA Unveils Record 650-Light-Year Mosaic of the Milky Way’s Turbulent Core

JWST Confirms MoM‑z14, Most Distant Galaxy Yet, at Redshift 14.44

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

Webb Confirms Most Distant Supernova Yet, SN Eos at Redshift 5.133

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

JWST’s ‘Little Red Dots’ Linked to Young, Cocooned Supermassive Black Holes

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

JWST and ALMA Reveal Early Massive Galaxy Quenched by Black Hole Starvation

Hubble Confirms 'Cloud‑9' as a Starless Dark‑Matter Halo Near M94

JWST Reveals Nine Distant ‘Platypus’ Galaxies With Star-Like Profiles and Galaxy-Like Spectra

Nature Study Finds Early Galaxy Cluster With Gas Five Times Hotter Than Models Allow

JWST Spots Most Distant Supernova Yet, Linked to 2025 Gamma-Ray Burst

JWST Spots Record-Distant Supernova Tied to March Gamma-Ray Burst

JWST Detects Chemical Traces of 1,000–10,000‑Solar‑Mass First Stars in Galaxy GS 3073

Record-Long Gamma-Ray Burst and Earliest-Known Supernova Challenge Models of Cosmic Explosions