Webb reveals the hidden forces that drive chaotic weather on a distant world

Webb revealed that the complex weather on a distant, fast-spinning world can be explained by just two surprisingly simple patterns.

Far from our solar system, a small, fast-spinning world is covered in weather that looks impossibly complicated up close.

Zoom out, though, and that weather runs on just two dials.

The world is a brown dwarf called SIMP 0136, an object bigger and hotter than Jupiter but not massive enough to sustain hydrogen fusion like a star.

It sits about 20 light-years from Earth and spins once every two and a half hours, fast enough that its cloud cover sweeps in and out of view within a single evening.

Using NASA’s James Webb Space Telescope, researchers watched how SIMP 0136’s light shifted as it spun.

Then they ran the results through a statistical shortcut built to separate real patterns from noise.