Earth is the only planet in our solar system that's not named after a god or goddess.
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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
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One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
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Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
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Sound doesn't travel in space.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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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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