Which cosmological model more simply describes the cause of retrograde motion?
A) The ancient Greek geocentric model
B) The Copernican model
C) The Ptolemic model
D) The Einsteinian model

Question

Quizplus · Accepted Answer

The retrograde motion of planets is more simply explained by the Copernican model, which states that planets revolve around the Sun in elliptical orbits, rather than the ancient Greek geocentric model or the Ptolemic model, which placed Earth at the center and required the addition of epicycles to account for retrograde motion. The Einsteinian model, while a more accurate description of general relativity, is not necessary for explaining retrograde motion.

Which Cosmological Model More Simply Describes the Cause of Retrograde