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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The sun puts out more power in 1 second than mankind has ever used within human existence.
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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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If you went out into space, you would explode before you suffocated because there's no air pressure.
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Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
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The Earth gets heavier each day by tons, as meteoric dust settles on it.
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There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
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