The United States has paved enough roads to circle the Earth over 150 times.
72
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
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
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
According to a 2011 poll, 32% of Russians believe that the Sun orbits Earth.
11
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
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
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119