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
Only 55% of Americans know that the sun is a star.
986
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
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
Jupiter is bigger than all the other planets combined.
254
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
There are two golf balls sitting on the moon.
721