Webb held WISE 0855 in view for eleven hours and watched its patchy water clouds thicken and thin as it turned (Martin Cid Magazine: https://www.martincid.com/science/wise-0855-water-clouds-jwst-coldest-brown-dwarf/). Beneath them, carbon monoxide and phosphine surged and faded in deep, uneven pulses, dredged up from the hot interior.
Source: https://www.martincid.com/science/wise-0855-water-clouds-jwst-coldest-brown-dwarf/
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