What was one of the first observations that hinted at limitations in Newton's theory of gravity?
A) deviations in the motion of the planet Uranus in the sky
B) deviations in the motion of the planet Mercury in the sky
C) shifts in position of stars close to the Sun during solar eclipses
D) failure to explain why all objects fall at the same rate in a gravitational field

Question

Quizplus · Accepted Answer

Deviations in the motion of the planet Mercury in the sky hinted at limitations in Newton's theory of gravity. The observed precession of Mercury's orbit could not be fully explained by Newton's laws and required the incorporation of Einstein's theory of general relativity.

What Was One of the First Observations That Hinted at Limitations