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
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
Jupiter is bigger than all the other planets combined.
254
Pluto is smaller than Russia.
9
A comet's tail always points away from the sun.
2
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4