The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
According to a 2011 poll, 32% of Russians believe that the Sun orbits Earth.
11
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
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Earth is the only planet in our solar system that's not named after a god or goddess.
17
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
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