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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In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
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A comet's tail always points away from the sun.
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There are more nerve cells in the human brain than there are stars in the Milky Way.
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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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There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
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