Mars had an oxygen-rich atmosphere around 4 billion years ago
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If two pieces of metal touch in space, they become permanently stuck together.
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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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A comet's tail always points away from the sun.
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MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
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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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