Uranus is the seventh planet from the Sun. Its name is a reference to the Greek god of the sky, Uranus, who, according to Greek mythology, was the great-grandfather of Ares, grandfather of Zeus and father of Cronus. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System.

How big is Uranus compared to the Earth?

Size and Distance

With a radius of 15,759.2 miles (25,362 kilometers), Uranus is 4 times wider than Earth. If Earth was the size of a nickel, Uranus would be about as big as a softball. From an average distance of 1.8 billion miles (2.9 billion kilometers), Uranus is 19.8 astronomical units away from the Sun.

Can you walk on Uranus?

You can't stand on Uranus

That's because Jupiter, Saturn, Uranus and Neptune don't have solid surfaces - they have a rocky core, but are mainly big balls of hydrogen and helium.