The population of the Earth has more than doubled since 1950.
151
The earth rotates more slowly on its axis in March than in September.
145
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
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
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219