Two new moons orbiting Uranus were announced in Nature magazine.
NASA's Voyager 2 came into close contact with Uranus and captured many images that uncovered 11 new moons.
British astronomer William Lassell discovered two of Uranus' moons, Ariel and Umbriel.
Astronomer Sir William Herschel discovered the first two moons of Uranus, Titania & Oberon.
Astronomer William Herschel first observed Uranus.
