In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
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
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
Sound doesn't travel in space.
255
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82