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 are more nerve cells in the human brain than there are stars in the Milky Way.
349
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
A comet's tail always points away from the sun.
2
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16