In the last 7 years, humanity has discovered 43 potentially habitable planets.
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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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Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
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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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The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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