Nicolaus Copernicus is credited with formulating the heliocentric model of the solar system, where the Sun is at the center and the planets, including Earth, revolve around it. His work, published in his book "De Revolutionibus Orbium Coelestium" in 1543, proposed this revolutionary idea and presented evidence to support it.
Aryabhata, an ancient Indian mathematician and astronomer, made significant contributions to the field of astronomy but did not explicitly prove that the Earth revolved around the Sun. In the 5th century CE, Aryabhata proposed a geocentric model, where the Earth is stationary at the center of the universe, with the Sun, Moon, and planets revolving around it. This model was based on his observations and calculations but did not challenge the prevailing geocentric worldview.
It is worth noting that the heliocentric model of the solar system was not widely accepted during Copernicus's time. His work faced opposition and it took several decades, and the efforts of other astronomers such as Galileo Galilei and Johannes Kepler, to gather additional evidence and support for the heliocentric model. It was through their collective efforts that the heliocentric model gradually gained acceptance and replaced the geocentric model in scientific understanding.