James Webb Space Telescope Maps Extreme Weather on Exoplanet WASP-121b, Revealing Ruby and Sapphire Rains

The James Webb Space Telescope (JWST) has provided detailed insights into the chaotic atmosphere of exoplanet WASP-121b, identifying 11,000-mph winds and nighttime precipitation of liquid gems. Observations revealed temperature differences between the exoplanet's dawn and dusk terminators, consistent with powerful winds redistributing heat from the intensely hot dayside to the cooler nightside.