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The Solar System

Sun | Mercury | Venus | Earth | The Moon | Mars | Jupiter | Saturn | Uranus | Neptune

The Seventh Planet

Uranus is the seventh planet from the Sun and the third largest planet in the solar system. Uranus is named after the Greek god of the same name, the god of the sky.

Uranus Quick Facts

Uranus Earth
Type of Planet Gas Giant Terrestrial
Moons Miranda, Ariel, Umbriel, Titania, Oberon, and at least 22 others The Moon
Rings 13 known None
Mass 8.681 × 1025 kg 5.972 × 1024 kg
Volume 6.833 × 1013 km3 1,083,000,000,000 km3
Closest Distance to Sun 2,749,000,000 km 147,100,000 km
Furthest Distance from Sun 3,004,000,000 km 152,100,000 km
Average Orbital Speed 24,520 kph 107,200 kph

Top Facts About Uranus for Kids

  • 1. Uranus has only been visited by one spacecraft.

    NASA's Voyager 2 is the only spacecraft to have visited Uranus. On 24 January 1986, the spacecraft—which had been launched about 8 years earlier, having already visited Jupiter and Saturn— passed within about 81,500 km of the clouds on Uranus' surface. Voyager 2 then continued on to visit Neptune some 2 years later.

  • 2. Uranus orbits the sun on its side.

    With the exception of Venus, all the solar system planets rotate on their axes from west to east. Although they are all slightly tilted, Uranus is tilted to such an extreme degree that it's effectively rotating on its side.