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
Earth is the only planet in our solar system that's not named after a god or goddess.
17
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The light hitting the earth right now is 30 thousand years old.
163
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25