The discovery expands Uranus’s known family of satellites to 29, with the tiny moon measuring just 6 miles across.

NASA’s James Webb Space Telescope has uncovered a small moon quietly circling Uranus, a world already known for its unusual tilt, faint rings, and puzzling family of satellites. The discovery, announced by researchers at the Southwest Research Institute (SwRI),

Astronomers using the James Webb Space Telescope have found an unknown moon orbiting Uranus, bringing the planet’s total to 29 — and more likely remain undiscovered.