The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Pluto is smaller than Russia.
9
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9