The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
It would take more than 150 years to drive a car to the sun.
569
Earth is the only planet in our solar system that's not named after a god or goddess.
17
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
Today's top fuel dragsters take off with more force than the space shuttle.
120
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
Mars had an oxygen-rich atmosphere around 4 billion years ago
13