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</html><description>Figure illustrating the movements of the planets according to the theories of Kepler and Copernicus, who both advocated the heliocentric theory. Unlike Copernicus, who believed that the planets had circular orbits, Kepler theorised elliptical orbits and a close relationship between geometry and cosmology. Four notes surround the illustrations and explain Kepler&#x2019;s theories as well as &hellip;</description></oembed>
