Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
Some asteroids have other asteroids orbiting them.
131
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 approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Astronauts cannot burp in space.
232