A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
Earth is the only planet in our solar system that's not named after a god or goddess.
17
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
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Ants make up 1/10 of the total world animal tissue. The total biomass of all the ants on Earth is about equal to the total biomass of all the people.
85
There are approximately three chickens for every human on Earth.
13
In 1963, the US Military created an artificial ring around Earth, similar to that of the planet Saturn. The ring was made of copper needles and was used for worldwide communications in the case that the Soviets disabled all other methods of communication.
26