The famous scientist who developed the model of heliocentrism is Nicolaus Copernicus. His revolutionary theory posited that the Sun, not the Earth, was at the center of the solar system, fundamentally altering humanity's understanding of its place in the universe. Published in his work "De revolutionibus orbium coelestium," Copernicus's heliocentric model challenged the long-held geocentric views endorsed by the Church. This paradigm shift laid the groundwork for future astronomers and eventually contributed to the scientific revolution, influencing figures like Galileo and Kepler.