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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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As of April 2010, Bill Gates had donated $36,854,000,000 in his lifetime! That's more than half of his total net worth!
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The US national public health institute, Centers for Disease Control and Prevention, has an actual plan in case of zombie invasion.
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