There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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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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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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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 center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
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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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Buzz Aldrin’s mother’s maiden name was Moon.
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