Even though S/2025 U1 is pretty tiny, measuring only 10km wide, the team behind the moon spotting say that it's big news.

A team led by scientists at the Southwest Research Institute (SwRI) in Colorado made 10 different 40-minute exposures of Uranus using JWST's Near-Infrared Camera (NIRCam) in order to find the small moon. Its discovery brings the total number of known Uranian moons to 29.

Rabat — A Moroccan scientist has led a groundbreaking discovery that adds a 29th moon to Uranus. Maryame Al Moutamid, a researcher at the Southwest Research Institute (SwRI), headed the team that spotted the new celestial body using NASA’s James Webb Space Telescope.

NASA’s James Webb Space Telescope has revealed a previously unknown moon orbiting Uranus, bringing the planet’s total to 29. The discovery, announced by a team led by the Southwest Research Institute (SwRI), adds a small but important piece to the picture of Uranus’ dynamic system.

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