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Copernicus' heliocentric theory challenged the prevailing geocentric model of the universe, leading to a shift in scientific understanding of our place in the cosmos. This laid the foundation for modern astronomy and influenced the Scientific Revolution, sparking new ways of thinking about the universe and our place within it.
Kepler had to modify the Copernican system by proposing that planetary orbits were elliptical, not circular as Copernicus had assumed. This change helped to better match Tycho Brahe's detailed observational data on the planets' positions. Kepler's new model became known as Kepler's laws of planetary motion.
Galileo and Copernicus challenged the medieval view of a geocentric universe, where Earth was considered the center of the universe, by proposing a heliocentric model that placed the Sun at the center. Their studies provided evidence that supported the idea that Earth revolved around the Sun, leading to a shift in the understanding of the cosmos and a reevaluation of humanity's place in the universe.
they both were scientist and both were astronomers and taught that the earth moves around the sun :)
The Church disagreed with Copernicus and Galileo's view of the heliocentric model because it contradicted the geocentric model supported by biblical interpretations at the time. The Church saw these ideas as heretical and conflicting with their understanding of the universe as presented in religious texts. This disagreement led to both Copernicus and Galileo facing backlash and condemnation from the Church.