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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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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Jupiter is bigger than all the other planets combined.
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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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All of the Earth's continents are wider at the north than in the south - and nobody knows why.
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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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