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2
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The first European to make regular observations of the heavens using a telescope. Published what he saw in 'The starry messenger.'
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4
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Used detailed astronomical data to arrive at his laws of planetary motion.
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5
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Explained why planetary bodies do not go off in straight lines but instead continue in elliptical obits around the sun.
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6
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Wrote 'Principal' and tied together the ideas of Copernicus, Kepler, and Galileo.
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8
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Model of the universe in which the universe is a series of concentric spheres. Earth is at the center of these spheres.
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9
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Sphere in the Ptolemaic Universe that moves itself and gives motion to other spheres.
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10
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Sun-centered.
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1
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Publisher of 'On the revolutions of the heavenly spheres.' Argued that the sun is at the center of the universe.
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3
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Defined the three laws of motion that govern the planetary bodies.
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7
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The greatest astronomer of antiquity. Created a geocentric universe model.
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