More than 20 million meteoroids enter Earth's atmosphere every day.
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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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Venus is the only planet that rotates clockwise.
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Lightning strikes about 6,000 times per minute on this planet!
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Jupiter is bigger than all the other planets combined.
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Astronauts get taller when they are in space.
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Jupiter's moon Ganymede, is larger than the planet Mercury!
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