The earth travels through space at 660,000 miles per hour.
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Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
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The Earth gets heavier each day by tons, as meteoric dust settles on it.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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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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The heart of an astronaut actually gets smaller when in outer space.
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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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