The light hitting the earth right now is 30 thousand years old.
163
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
Earth is the only planet in our solar system that's not named after a god or goddess.
17
There are approximately three chickens for every human on Earth.
13
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
A single speck of dust is half way in size between a subatomic particle and the Earth.
15