The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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41% of the moon is not visible from earth at any time.
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Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
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The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
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Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
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Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
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A 100-pound person on Earth would weigh 38 pounds on Mars.
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