If two pieces of metal touch in space, they become permanently stuck together.
808
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
Earth is the only planet in our solar system that's not named after a god or goddess.
17
It would take more than 150 years to drive a car to the sun.
569
It 'snows' metal on Venus.
13