The Earth sees about 760 thunderstorms every hour, scientists have calculated.
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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.
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There are approximately three chickens for every human on Earth.
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Earth is the only planet in our solar system that's not named after a god or goddess.
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If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
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.
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According to a 2011 poll, 32% of Russians believe that the Sun orbits Earth.
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