~ Uranus is a giant gas planet which is made up of mostly rock and various ices.
~ Uranus has been visited by only one spacecraft, Voyager 2 on Jan 24 1986.
~ Uranus spins differently from most planets. It seems to be tilted "sideways" instead of right-side up. At the time of Voyager 2's passage, Uranus' south pole was pointed almost directly at the Sun.
~ Uranus has 15 known moons. Voyager 2 discovered 10 small moons in addition to the 5 large ones already known. It is likely that there are many more tiny moons within the rings.