While the idea of a heliocentric model (sun-centered) was proposed by ancient Greek philosophers like Aristarchus of Samos, it was Copernicus who revived and developed this idea in his book "De Revolutionibus Orbium Coelestium" (On the Revolutions of the Heavenly Spheres), published in 1543.
His theory challenged the prevailing geocentric model (Earth-centered), which was the accepted view for centuries. Copernicus' work was controversial and met with resistance from the Church, but it paved the way for further astronomical discoveries and ultimately led to the scientific revolution.
