The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
It would take more than 150 years to drive a car to the sun.
569
It 'snows' metal on Venus.
13
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
Earth is the only planet in our solar system that's not named after a god or goddess.
17