JWST Reveals Pluto’s Haze Cools Atmosphere, Paints Charon’s Poles Red

Pluto's thin haze of organic particles, confirmed by JWST’s mid-infrared observations, plays a crucial role in both cooling its mesosphere and launching methane into space. This methane escapes Pluto’s gravity, landing on Charon’s poles where radiation transforms it into reddish tholins. The study highlights how Pluto’s haze shapes not only its own atmospheric balance but also alters the surface chemistry of its moon. This dynamic exchange between a dwarf planet and its satellite offers rare insight into planetary climate processes across the Solar System.

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