Earth is the only planet in our solar system that's not named after a god or goddess.
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Summer on Uranus lasts for 21 years.
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It takes eight and a half minutes for light to get from the sun to earth.
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Astronauts get taller when they are in space.
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The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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There are two golf balls sitting on the moon.
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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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