Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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A 100-pound person on Earth would weigh 38 pounds on Mars.
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Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
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It takes eight and a half minutes for light to get from the sun to earth.
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The temperature of the earth's interior increases by 1 degree every 60 feet down.
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Astronauts get taller when they are in space.
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Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
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