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
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
