The book "De Revolutionibus Orbium Coelestium"
A)describes how Galileo's observations and Kepler's calculations proved the Copernican theory.
B)describes the construction of Galileo's telescope and his observations.
C)is a dialog written to convince the general public of the merits of the Copernican theory.
D)first described the Copernican theory.
E)describes the Tychonian theory.

Question

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"De Revolutionibus Orbium Coelestium" is a book written by Nicolaus Copernicus and first published in 1543. This book introduced the Copernican theory, which proposed that the Sun, rather than the Earth, was the center of the universe.

The Book "De Revolutionibus Orbium Coelestium