The population of the Earth has more than doubled since 1950.
151
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
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
A comet's tail always points away from the sun.
2
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15