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
41% of the moon is not visible from earth at any time.
103
It 'snows' metal on Venus.
13
There are two golf balls sitting on the moon.
721
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The light hitting the earth right now is 30 thousand years old.
163