The heart of an astronaut actually gets smaller when in outer space.
216
The earth is .02 degrees hotter during a full moon.
157
The earth travels through space at 660,000 miles per hour.
189
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
There are two golf balls sitting on the moon.
721
41% of the moon is not visible from earth at any time.
103
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121