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
The population of the Earth has more than doubled since 1950.
151
Astronauts cannot burp in space.
232
The light hitting the earth right now is 30 thousand years old.
163
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
It 'snows' metal on Venus.
13