It takers Uranus approximately 84.3 Earth years (30,687 Earth days) to complete one orbit around the sun.

Its atmosphere contains methane, which makes the planet look blue.

Uranus stinks. The planet's upper clouds are made of hydrogen-sulfide, the chemical compound that gives rotten eggs their unpleasant odor.

The moons of Uranus are named after characters from the works of William Shakespeare and Alexander Pope.

Uranus is the seventh planet from the sun at a distance of about 1.8 billion miles (2.9 billion kilometers).

Uranus is visible to the naked eye, but it was never recognized as a planet by ancient observers because of its dimness and slow orbit. Sir William Herschel announced its discovery on March 13, 1781, expanding the known boundaries of the Solar System for the first time in history and making Uranus the first planet discovered with a telescope.

In 1986, images from Voyager 2 showed Uranus as an almost featureless planet in visible light, without the cloud bands or storms associated with the other giant planets.

Uranus' unique sideways rotation makes for weird seasons. The planet's north pole experiences 21 years of nighttime in winter, 21 years of daytime in summer and 42 years of day and night in the spring and fall.

If you could stand on the surface of Uranus (you can't, for so many reasons), you would experience 89% the force of gravity that you experience on Earth.

Unlike Saturn's preening hoops, the 13 rings of Uranus are dark and foreboding, likely comprised of ice and radiation-processed organic material.