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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If two pieces of metal touch in space, they become permanently stuck together.
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The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
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Pluto is smaller than Russia.
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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
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