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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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
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NASA invented baby food as we know it today.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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