Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
There are two golf balls sitting on the moon.
721
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8
The earth travels through space at 660,000 miles per hour.
189
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Astronauts cannot burp in space.
232
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