The earth is approx. 6,588,000,000,000,000,000 tons.
175
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
If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
21
A single speck of dust is half way in size between a subatomic particle and the Earth.
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
There are approximately three chickens for every human on Earth.
13