There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
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
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
It 'snows' metal on Venus.
13
NASA invented baby food as we know it today.
7