Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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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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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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Summer on Uranus lasts for 21 years.
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Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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