Our Understanding of the Solar System Has Come in a Way

Multiple Choice

Our understanding of the solar system has come in a way that can best be described as:

A) constant since prehistoric times.
B) slow and steady since the discovery of the telescope by Galileo.
C) erratic, with spurts when new planets were found.
D) steady until the last decade, when the decline in the space program slowed it a great deal.
E) explosive, with us learning more in the past few decades than in all previous history.