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
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 is approx. 6,588,000,000,000,000,000 tons.
175
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
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
Earth is the only planet in our solar system that's not named after a god or goddess.
17
There are approximately three chickens for every human on Earth.
13