The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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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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Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
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The Earth gets 100 tons heavier every day due to falling space dust.
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If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
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If you went out into space, you would explode before you suffocated because there's no air pressure.
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The earth rotates more slowly on its axis in March than in September.
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Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
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