Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
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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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A 100-pound person on Earth would weigh 38 pounds on Mars.
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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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The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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