The light hitting the earth right now is 30 thousand years old.
163
The population of the Earth has more than doubled since 1950.
151
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
The heart of an astronaut actually gets smaller when in outer space.
216
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
There are two golf balls sitting on the moon.
721