Answer:-
The heliocentric theory, which states that the Sun is at the center of the solar system, was developed by Nicolaus Copernicus in the 16th century. Before this, the geocentric model, which placed Earth at the center, was widely accepted. In his book De Revolutionibus Orbium Coelestium (1543), Copernicus proposed that Earth and other planets orbit the Sun. Kepler. Galileo’s telescope observations and Kepler’s laws of planetary motion provided strong evidence, ultimately leading to the acceptance of the heliocentric model and a major shift in scientific thought.
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