JWST data links Uranus rings to hidden moons, hinting at more to discover

New infrared observations from the James Webb Space Telescope show Uranus’s outer mu- and nu-rings have distinct origins: the blue mu-ring is ice-rich and linked to Mab (a 12‑km inner moon), while the red nu-ring contains organics, likely produced by dust from undiscovered inner moons, suggesting additional moons exist beyond the 29 already known and that a future Uranus mission may be needed to unravel the system.