Final answer:
Nicolaus Copernicus was the first to propose the heliocentric model with the Sun at the center of the universe, challenging the Ptolemaic geocentric model.
Explanation:
The model of the universe that suggests that the Sun is the center of the universe was first developed by Nicolaus Copernicus. Copernicus proposed the heliocentric system, which placed the Sun at the center of the solar system, challenging the Ptolemaic geocentric model.
Learn more about Copernicus and the Heliocentric Model here:
https://brainly.com/question/1890001
