Mars had an oxygen-rich atmosphere around 4 billion years ago
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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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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Earth is the only planet in our solar system that's not named after a god or goddess.
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Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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It 'snows' metal on Venus.
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