Earth is the only planet in our solar system that's not named after a god or goddess.
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Summer on Uranus lasts for 21 years.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
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If you went out into space, you would explode before you suffocated because there's no air pressure.
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The temperature of the earth's interior increases by 1 degree every 60 feet down.
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If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
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Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
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