Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The United States has paved enough roads to circle the Earth over 150 times.
72
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
There are approximately three chickens for every human on Earth.
13
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185