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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There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
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On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
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If NASA sent birds into space they would soon die; they need gravity to swallow.
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NASA invented baby food as we know it today.
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It 'snows' metal on Venus.
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The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
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The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
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