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.

NEW YORK — The Webb Space Telescope has spotted a new tiny moon orbiting Uranus. The new member of the lunar gang, announced Tuesday by NASA, appears to be just six miles wide. It was spotted by the telescope’s near-infrared camera during observations in February.