The earth rotates more slowly on its axis in March than in September.
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Lightning strikes about 6,000 times per minute on this planet!
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There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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Venus is the only planet that rotates clockwise.
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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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Astronauts cannot burp in space.
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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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