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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One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
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It 'snows' metal on Venus.
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If NASA sent birds into space they would soon die; they need gravity to swallow.
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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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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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Mars had an oxygen-rich atmosphere around 4 billion years ago
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