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Planetary Atmospheres

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Webb Spots Carbon-Rich, Lemon-Shaped Planet Orbiting a Pulsar

Invisible pulsar light let astronomers isolate the planet’s infrared signal, exposing an atmosphere that current formation models cannot explain.

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

JWST Maps Giant Dual Helium Tails Streaming From Ultra-Hot Jupiter WASP-121 b

Scientists Detect Habitable-Zone ‘Super‑Earth’ GJ 251 c Just 18 Light‑Years Away

New UC Santa Cruz Model Explains JWST’s Steam‑Rich Sub‑Neptunes

Framework for Lava Planet Evolution Secures 100 Hours of JWST Time

Doubts Deepen Over Potential Biosignature on Exoplanet K2-18b