Final answer:
Aristotle believed in a geocentric model where Earth was at the center, not in elliptical planetary orbits. It was Kepler who described planetary orbits as ellipses with the Sun at one focus.
Step-by-step explanation:
False, Aristotle did not believe that planets move around the sun in elliptical orbits. It was Johannes Kepler who formulated the laws of planetary motion that describe the orbits of planets as ellipses, with the Sun at one focus. In contrast, Aristotle adhered to the geocentric model, the belief that the Earth was the center of the universe, and this model was later elaborated on by Ptolemy.
Ptolemy introduced complexities such as the deferent and epicycle to match the observed irregularities in planetary motion with a geocentric view. It was only after Nicolaus Copernicus proposed a heliocentric model and Kepler refined the understanding of planetary orbits that the elliptical nature of the orbits was accepted.