Earth is the only planet in our solar system that's not named after a god or goddess.
17
The population of the Earth has more than doubled since 1950.
151
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
It would take more than 150 years to drive a car to the sun.
569
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219