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
It takes eight and a half minutes for light to get from the sun to earth.
159
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Some asteroids have other asteroids orbiting them.
131
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