How was the planet Neptune discovered?
A) Neptune was discovered by mathematical prediction using Newton's laws.
B) Neptune happened to pass close to Jupiter in the sky and was discovered by an astronomer studying Jupiter.
C) Neptune was discovered accidentally during a telescopic survey of the sky.
D) No one knows-Neptune has been known since ancient times.

Question

Quizplus · Accepted Answer

Neptune was discovered as a result of mathematical predictions made using Newton's laws of motion and gravitation. Observations of irregularities in the orbit of Uranus led astronomers to predict the position of another planet, which was then observed through a telescope.

How Was the Planet Neptune Discovered