An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Earth is the only planet in our solar system that's not named after a god or goddess.
17
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
It would take more than 150 years to drive a car to the sun.
569
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11