What modern scientist first proposed the theory that the planets orbited the sun based on Aristarchuss proposal?
The modern scientist who first proposed the heliocentric model, suggesting that planets orbit the sun, was Nicolaus Copernicus. His work in the 16th century built upon earlier ideas, including those of the ancient Greek astronomer Aristarchus of Samos, who had posited a sun-centered universe centuries earlier. Copernicus's model challenged the long-held geocentric view and laid the foundation for future astronomical discoveries.