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James Webb Space Telescope

Observations Observational Astronomy Discoveries Infrared Observations Observational Techniques NIRCam Hubble Space Telescope Mid-Infrared Instrument Images Data Analysis

Webb and Hubble Show Massive Star Clusters Break Free Faster

The finding offers a new yardstick for models of how stars shape galaxies.

Webb Reveals Non-Rotating Massive Galaxy in the Early Universe

Webb Maps the Surface of a Nearby Super-Earth, Revealing a Dark Basaltic World

JWST Spots Water-Ice Clouds on Nearby Jupiter-Like World

NASA Unveils Paired Webb and Hubble Views of Saturn

Webb’s ‘Little Red Dots’ Remain Unexplained as Conflicting Clues Emerge

Webb Observations Eliminate 2032 Lunar-Impact Risk From Asteroid 2024 YR4

Webb Finds Dust-Obscured Red Supergiant Behind 2025 Supernova, a First for the Telescope

Webb Delivers Sharpest Contiguous Map of Dark Matter’s Cosmic Web

Webb Delivers Sharpest Dark-Matter Map, Revealing the Universe’s Hidden Scaffold

JWST Produces Most Detailed Dark-Matter Map to Date

Webb NIRCam Reveals Helix Nebula’s Cometary Knots in Unprecedented Detail

JWST Sees Protostar Forge Crystals in Outbursts, Then Hurl Them to Comet-Building Zones

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

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

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

Webb Finds Helium–Carbon Atmosphere on First Hot Jupiter Known Around a Pulsar

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

JWST Detects Chemical Fingerprint of Primordial 'Monster Stars' in Early Galaxy