The moon is actually moving away from Earth at a rate of 1.5 inches per year.
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If you went out into space, you would explode before you suffocated because there's no air pressure.
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There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
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The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
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An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
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Lightning strikes about 6,000 times per minute on this planet!
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Some asteroids have other asteroids orbiting them.
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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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