Webb Spots Chemical Weather on Brown Dwarfs
Brown dwarfs are heavier than planets but lighter than stars. Their atmospheres resemble a bubbling pot: clouds of scorching sand and iron droplets rise and fall.
Dust Storms on a Rogue Planet
Far beyond the Solar System, a world called VHS 1256B wanders — a giant planet without a star. For a long time, astronomers couldn’t figure out why its brightness jumped by nearly 40% in just a few days. The answer came with the James Webb telescope: it turns out, colossal storms of silicate dust engulf the entire planet.