Astronauts get taller when they are in space.
224
The population of the Earth has more than doubled since 1950.
151
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
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
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 earth rotates more slowly on its axis in March than in September.
145
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219