The first major astronomical prediction of Newton's theory of gravitation to be confirmed by observation was the
A) return of Comet Halley.
B) supernova of 1572.
C) discovery of Pluto.
D) discovery of Neptune.

Question

Quizplus · Accepted Answer

Newton's theory of gravitation predicted the return of Comet Halley, which was confirmed when the comet reappeared in 1758, as predicted by Edmond Halley using Newton's laws.

The First Major Astronomical Prediction of Newton's Theory of Gravitation