In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
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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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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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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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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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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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The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
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