Science ❯ Astrophysics ❯ Cosmology

Early Universe

Galaxy Evolution Galaxy Formation Big Bang Star Formation Galactic Evolution Primordial Black Holes Stellar Evolution Metal-Poor Stars Black Hole Evolution Galaxy Clusters Gravitational Lensing Star Clusters Planetary Systems Stellar Environments Black Hole Growth Massive Black Holes Element Formation Lyman-α Photons Galaxy Dynamics Galactic Formation Redshift Measurements Gas Clouds Radio Astronomy Reionization-Limited H I Cloud Primordial Structures Exotic Objects Stellar Formation Solar System Formation Massive Galaxies Formation of Black Holes

JWST Spectra Show Hidden Low‑Mass Stars That Raise Galaxy Masses

New deep JWST and VLT spectra point to a bottom-heavy initial mass function that increases inferred stellar mass and pressures theories of early galaxy growth.

Astronomers Report Candidate 'Black‑Hole Star' From Cosmic Dawn

JWST and ALMA Image Supernova-Driven Wind Stripping Gas From a z≈5.3 Galaxy

Webb Reveals Non-Rotating Massive Galaxy in the Early Universe

JWST Detects Methane From Interstellar Comet 3I/ATLAS

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

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

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

Hubble Confirms First Starless Dark-Matter Cloud, ‘Cloud-9,’ a Predicted RELHIC

JWST Reveals 'Alaknanda,' a Milky Way–Like Spiral 1.5 Billion Years After the Big Bang

Chang'e-6 Rocks Reveal Cooler Lunar Far-Side Mantle by About 100°C

JWST to Target Triple Black Hole in Ringed Infinity Galaxy