On its trip out of our solar system, this spacecraft discovered Puck, a moon of Uranus
[DOC] [TLE] Space Today Online - Solar System - Planet Uranus - Moons [PAR] NASA Image Uranus Moons Umbriel and Ariel ... Before the planet was visited by 
the spacecraft Voyager 2 on January 24, 1986, ... Voyager found nine rings 
around Uranus, but they were quite different from Jupiter and Saturn rings.