An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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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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Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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Summer on Uranus lasts for 21 years.
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