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,

NASA’s James Webb Space Telescope has discovered another moon orbiting Uranus, expanding the planet’s natural satellite count to at least 29. The tiny moon is now known as S/2025 U1 until the International Astronomical Union (IAU) votes on a more permanent name.