Which scientist devised a heliocentric model of the universe?

The heliocentric model of the universe, which positions the sun at the center and describes the earth and other planets as orbiting around it, was developed by Nicolaus Copernicus. His groundbreaking work, "De revolutionibus orbium coelestium" (On the Revolutions of the Celestial Spheres), published in 1543, challenged the long-held geocentric view that placed the Earth at the center of the universe. Copernicus's ideas laid the foundation for modern astronomy and significantly influenced later scientists, including Galileo and Kepler, who built upon his work to further understand celestial motion.