The heart of an astronaut actually gets smaller when in outer space.
216
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
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
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
Some asteroids have other asteroids orbiting them.
131
Sound doesn't travel in space.
255
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160