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 moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
41% of the moon is not visible from earth at any time.
103
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Some asteroids have other asteroids orbiting them.
131
The light hitting the earth right now is 30 thousand years old.
163