The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
A comet's tail always points away from the sun.
2
It 'snows' metal on Venus.
13