Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
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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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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
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It 'snows' metal on Venus.
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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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Pluto is smaller than Russia.
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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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