Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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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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Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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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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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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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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