Science ❯ Astronomy ❯ Observational Astronomy

James Webb Space Telescope

Galaxy Observations Spectroscopy Infrared Observations Data Analysis Cosmic Discoveries JWST Discoveries Mid-Infrared Instrument Galaxy Formation COSMOS Field Extragalactic Surveys

Loktak Protocluster Reveals Early Environmental Impact on Galaxy Growth

JWST imaging shows protocluster galaxies had larger optical sizes than field galaxies at z ≃ 4.9.

Study Suggests Nereid Is Neptune’s Last Intact Original Moon

JWST Finds Ultra-Faint Galaxy Showing Chemical Traces of the First Stars

JWST Finds Early Massive Galaxy That Isn't Rotating

Cosmic Bounce Theory Suggests Black Hole 'Fossils' Could Account for Dark Matter

JWST Studies Report Strongest Evidence Yet of Population III Stars Near GN‑z11

JWST Spots Record-Low Metallicity in ‘Forbidden’ Giant Planet’s Atmosphere

JWST Finds Metal-Poor Atmosphere on Giant Planet Around a Small Red Dwarf

JWST Helps Reveal Sulfur-Rich Magma-Ocean World L 98-59 d

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

JWST Spots Sulfur in HR 8799 c, Strengthening Case for Core Accretion

Webb Produces Sharpest Contiguous Map of Dark Matter in COSMOS-Web Field

JWST Finds Compact Five-Galaxy Merger From 800 Million Years After the Big Bang

JWST Produces Most Detailed Dark-Matter Map to Date

Webb Links Protostellar Bursts to Crystal Formation and Outflows in EC 53

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

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

Earliest Superheated Galaxy-Cluster Atmosphere Detected Challenges Formation Models

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

JWST Reveals Pulsar-Orbiting ‘Lemon’ Planet With Helium–Carbon Atmosphere