Science ❯ Astronomy ❯ Planetary Science

Planetary Atmospheres

Uranus Atmospheric Composition Neptune Auroras Hydrogen and Helium Atmospheres Volatile Gases Gas Giants Mass Loss Mechanisms Rocky Planets CO2-rich Atmosphere Helium and Carbon Atmosphere Helium Escape Early Solar System Comparative Planetology Surface Conditions Atmospheric Characterization Carbon Atmospheres WASP-189 b Magma Oceans Atmospheric Properties Chemical Composition Ultra-hot Neptunes

JWST Charts Uranus’s Upper Atmosphere in 3D, Exposing Auroral Bands and a Cooling Trend

NIRSpec integral-field measurements of H3+ across nearly a full rotation reveal structure set by Uranus’s tilted, offset magnetic field.

James Webb Delivers First 3D Map of Uranus’s Upper Atmosphere

Kepler Data Reveal Earth-Size Planet Candidate HD 137010 b Near Star’s Habitable Edge

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

Webb Finds Carbon-Rich Atmosphere on Lemon-Shaped Planet Orbiting a Pulsar

Webb Data Point to Thick Atmosphere on Ultra‑Hot Super‑Earth TOI‑561 b

JWST Maps Comet-Like Helium Escape From Super-Puff Exoplanet WASP-107b

Webb Telescope Rules Out Atmosphere on Earth-Sized Exoplanet TRAPPIST-1 d

Five Papers Showcase NIRPS’s Exoplanet Discoveries and High-Precision Performance

Webb Reveals Silicate Clouds and Moon-Forming Disk in YSES-1 System