Mark S. Marley

VHS 1256B is a giant planet, drifting alone in the dark. Its brightness swings by 40% due to global storms of scorching sand. Data from the James Webb telescope and computer models showed that dust clouds blanket the planet entirely, explaining the strange changes in its light and color. This discov

Atmospheres of many sub-Neptunes are shrouded in dense organic hazes that hide their true composition. In lab experiments, such hazes were recreated from water vapor, methane, and carbon dioxide, then irradiated with ultraviolet light, mimicking flares from red dwarfs. It turned out that after irrad

The James Webb Space Telescope has peered into a previously unseen world: the atmosphere of the giant planet WD 1856 b, orbiting a white dwarf. The transit spectrum from 0.5 to 5.0 μm revealed hydrocarbons, including methane with a significance of 17:1 to 30:1, thick aerosols, and thermal glow from