The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's atmosphere, while at the same time giving methane and other organic molecules a kick out of Pluto's atmosphere, where some are subsequently being gathered up by Pluto's close companion, Charon.

"The new brown dwarfs are the least massive known brown dwarfs. They place a new constraint on the lowest mass at which brown dwarfs exist."