In 1986, Voyager 2 discovered 10 moons around Uranus. 39 years later, Webb found a 29th moon only 10 kilom - The Economic Times

In 1986, Voyager 2 discovered 10 moons around Uranus during its flyby. Thirty-nine years later, James Webb Space Telescope observations identified S/2025 U1, a moon about 10 kilometres wide between Ophelia and Bianca. The discovery raised the known number of …