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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Mars had an oxygen-rich atmosphere around 4 billion years ago
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The light hitting the earth right now is 30 thousand years old.
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The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
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A comet's tail always points away from the sun.
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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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It 'snows' metal on Venus.
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