The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
Earth is the only planet in our solar system that's not named after a god or goddess.
17
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
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 are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
The Earth gets 100 tons heavier every day due to falling space dust.
673
41% of the moon is not visible from earth at any time.
103
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82