👉 In astronomy, the Copernican Revolution was a scientific theory that proposed that the Earth is the center of the solar system and all other planets revolve around it. This concept was initially introduced by Nicolaus Copernicus in his book "De revolutionibus orbium coelestium" (On the Revolutions of the Celestial Spheres) published in 1543. The theory suggested that the Earth, or the Sun, was at the center of the solar system. This