Science ❯ Astronomy ❯ Space Telescopes ❯ James Webb Space Telescope

NIRISS Instrument

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

Continuous full-orbit NIRISS measurements reveal persistent atmospheric escape that forces a rethink of exoplanet mass-loss modeling.

JWST Delivers First 3D Map of an Exoplanet's Atmosphere