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
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
It would take more than 150 years to drive a car to the sun.
569
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 last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8