It takes eight and a half minutes for light to get from the sun to earth.
159
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
Sound doesn't travel in space.
255
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
The sun is 330,330 times larger than the earth!
190
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
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