The discovery expands Uranus’s known family of satellites to 29, with the tiny moon measuring just 6 miles across.

Scientists have discovered a new, elusive moon around Uranus, making it the 29th natural satellite known to orbit the ice giant. The research team that made the discovery estimates that the moon, dubbed S/2025 U1 for now (at least,

Uranus' 29th moon was hidden inside the planet's dark inner rings, new observations from the James Webb Space Telescope reveal.