Astronomers discover high-altitude clouds darkening skies in the YSES-1 system

Astronomers have spotted something wild in the distant YSES-1 system—thick, high-altitude clouds packed with minerals (possibly even iron) swirling around a young exoplanet called YSES-1b. These clouds are so dense they might be causing literal iron rain to fall on the planet. The whole system is just a baby in cosmic terms, only a million years old, and it’s already serving up fascinating clues about how planets form. Plus, there’s a mysterious dust disk hanging around, adding another layer to the puzzle.