In the last 7 years, humanity has discovered 43 potentially habitable planets.
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All of the Earth's continents are wider at the north than in the south - and nobody knows why.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
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41% of the moon is not visible from earth at any time.
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Lightning strikes about 6,000 times per minute on this planet!
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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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