The heart of an astronaut actually gets smaller when in outer space.
216
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
If two pieces of metal touch in space, they become permanently stuck together.
808
41% of the moon is not visible from earth at any time.
103
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
There are two golf balls sitting on the moon.
721