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
There are approximately three chickens for every human on Earth.
13
The United States has paved enough roads to circle the Earth over 150 times.
72
The earth is approx. 6,588,000,000,000,000,000 tons.
175
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
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