The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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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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Pluto is smaller than Russia.
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A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
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There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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Venus is the only planet that rotates clockwise.
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