If two pieces of metal touch in space, they become permanently stuck together.
808
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
The population of the Earth has more than doubled since 1950.
151
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Venus is the only planet that rotates clockwise.
310
Some asteroids have other asteroids orbiting them.
131
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 ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11