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
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
There are two golf balls sitting on the moon.
721
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Astronauts get taller when they are in space.
224