Question

which describes one way that aristarchuss explanation of the movement of objects in the sky was different from other scientists earlier explanations? he discovered venuss phases. he argued that earth rotates on its axis. he explained the concept of retrograde motion. he described the epicycles of the planets in the sky.

Explanation:

Aristarchus was one of the first to propose that Earth rotates on its axis, which was different from earlier views. Galileo discovered Venus's phases. Hipparchus and Ptolemy described retrograde motion and epicycles.

Answer:

He argued that Earth rotates on its axis.