The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
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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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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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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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The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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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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Pluto is smaller than Russia.
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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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