The population of the Earth has more than doubled since 1950.
151
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 density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Astronauts cannot burp in space.
232
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
Today's top fuel dragsters take off with more force than the space shuttle.
120
Buzz Aldrin’s mother’s maiden name was Moon.
9