The heart of an astronaut actually gets smaller when in outer space.
216
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
41% of the moon is not visible from earth at any time.
103
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
The sun is 330,330 times larger than the earth!
190
Sound doesn't travel in space.
255