Science ❯ Astronomy ❯ Exoplanets
WASP-121 b WASP-121b SIMP-0136 Atmospheric Retention Spectral Energy Distribution Temperature Variations Epsilon Indi Ab Planetary Formation Chemical Fingerprints TOI-561 b GJ504b Composition Insights Carbon-rich Atmosphere WASP-127b YSES-1 System WASP-94A b Biosignatures LTT 9779 b Cold Giant Exoplanets TOI-421b TRAPPIST-1e TOI-199b Research Directions Methane Hydrogen Sulfide Detection WASP-121b (Tylos) GJ 504 b Telescope Development Water Vapor 3D Mapping Techniques TOI-421 b K2-18b EXCITE Mission WASP-76 b Winds WASP-107 b WASP 121-b Cloud Cover Wind Patterns Clouds SPECULOOS-3b WASP-96b James Webb Space Telescope
Ground‑based 2024 helium measurements validate predictive models; independent JWST and HST follow‑ups will test whether the signal is real and persistent