Uranus was originally called “George’s Star” (Georgium Sidus).
The summer in Uranus is 42 years long.
Uranus has the coldest planetary atmosphere in the Solar System, with a minimum temperature of -371.56 °F (-224 °C).
63 Earths can fit inside Uranus.
Jupiter has 67 moons, Saturn has 62, Uranus 27, Neptune 14, Mars 2 and Earth just one.
Uranus has only two seasons: Summer and Winter.
Uranus’ moons are named after characters from the works of Shakespeare and Alexander Pope.
The wind speeds on Uranus can reach 560 mph (900 km/h).
The surface gravities of Venus, Saturn, Uranus, and Neptune are all quite similar (within 15%) to Earth’s.
Neptune was mathematically predicted before it was directly observed, based on the orbit of Uranus.
Uranus rotates sideways and “rolls” around the sun rather than “spinning” like the other planets.
There’s a moon named Cupid that orbits Uranus.
The chemical element Uranium, discovered in 1789, was named after the newly discovered planet Uranus.