Copernicanism is a term that is used to describe the revolutionary idea that the Earth and the planets revolve around the Sun. The concept was first put forth by the Polish astronomer Nicolaus Copernicus in the 16th century, and it transformed our understanding of the universe. Some synonyms for Copernicanism include heliocentrism, the Copernican revolution, and the Copernican model. These terms all refer to the idea that the Sun is at the center of the solar system and that the Earth and other planets orbit around it. Other related terms include the astronomical revolution and the scientific revolution, which were broader movements that included Copernicanism but also encompassed many other advances in astronomy and science.