Venus is the only planet that rotates clockwise.
310
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The population of the Earth has more than doubled since 1950.
151
Summer on Uranus lasts for 21 years.
358
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Sound doesn't travel in space.
255