How did Newton's work support the earlier work of Copernicus, Kepler, and Galileo?

Answer:Copernicus had thought. Galileo used a telescope to apply his understanding of motion and further validate Copernicus's heliocentric theory ... Main scientists had observed planets moving around the sun but this theory finally explained why.

Explanation:

Kepler identified the orbits of the planets were ellipses (ovals) not circluar as Copernicus had thought.