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
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
If two pieces of metal touch in space, they become permanently stuck together.
808
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31
41% of the moon is not visible from earth at any time.
103
Astronauts cannot burp in space.
232