In 1994, the Hubble space telescope photographed Uranus with its rings and several inner moons. Bright clouds showed up in the southern hemisphere of the planet. Hubble gave astronomers the ability to again study details of the planet previously seen only briefly while the Voyager 2 spacecraft flew by the planet a decade earlier. Uranus (University of Arizona Space Science Series), by Jay T. Bergstralh et. al. - book suggestion.