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
Only 55% of Americans know that the sun is a star.
986
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
It 'snows' metal on Venus.
13
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9