The planet Uranus has 27 known moons, with five major ones: Miranda, Ariel, Umbriel, Titania, and Oberon. These moons vary in size and composition, featuring a mix of ice and rock. Miranda is notable for its unique surface, which includes canyons and cliffs. The remaining moons are smaller and less studied, often named after characters from the works of William Shakespeare and Alexander Pope. Uranus's moons have diverse geological features, with some showing signs of past tectonic activity, while others are heavily cratered, indicating a history of impacts.