Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
The population of the Earth has more than doubled since 1950.
151
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Buzz Aldrin’s mother’s maiden name was Moon.
9
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
The heart of an astronaut actually gets smaller when in outer space.
216
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Some asteroids have other asteroids orbiting them.
131