Earth is the only planet in our solar system that's not named after a god or goddess.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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The moon is actually moving away from Earth at a rate of 1.5 inches per year.
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There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
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The heart of an astronaut actually gets smaller when in outer space.
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The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
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Lightning strikes about 6,000 times per minute on this planet!
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