Earth is the only planet in our solar system that's not named after a god or goddess.
17
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
Only 55% of Americans know that the sun is a star.
986
Astronauts get taller when they are in space.
224
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115