An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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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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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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The Earth gets heavier each day by tons, as meteoric dust settles on it.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
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