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.
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The Earth sees about 760 thunderstorms every hour, scientists have calculated.
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There are approximately three chickens for every human on Earth.
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Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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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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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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The light hitting the earth right now is 30 thousand years old.
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