Webb finds Uranus's 29th moon, a tiny world Voyager 2 missed nearly 40 years ago

Nearly four decades after Voyager 2 swept through the Uranian system in a single, irrepeatable pass, the James Webb Space Telescope has found what that encounter could not: a tiny 10-kilometre moon, S/2025 U1, orbiting quietly between Ophelia and Bianca. The discovery, made on February 2, 2025, brings the known Uranian moon count to 29 and offers a quiet lesson about the nature of knowledge — that proximity is not the same as understanding, and that patience, held steady for six hours across infrared wavelengths, can reveal what speed and urgency leave behind. Uranus remains the least-visited