Earth is the only planet in our solar system that's not named after a god or goddess.
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Today's top fuel dragsters take off with more force than the space shuttle.
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The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
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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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