The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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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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The earth travels through space at 660,000 miles per hour.
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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 Earth gets 100 tons heavier every day due to falling space dust.
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Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
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Some asteroids have other asteroids orbiting them.
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