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
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Summer on Uranus lasts for 21 years.
358
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
The earth travels through space at 660,000 miles per hour.
189
The population of the Earth has more than doubled since 1950.
151
The light hitting the earth right now is 30 thousand years old.
163
There are two golf balls sitting on the moon.
721