The Copernican Revolution refers to the paradigm shift in astronomy initiated by Nicolaus Copernicus in the 16th century. He proposed that the Sun, rather than the Earth, is at the center of the universe, challenging the long-held geocentric model that placed the Earth at the center. This heliocentric theory laid the groundwork for modern astronomy. Copernicus's ideas were further developed by later astronomers, including Galileo Galilei and Johannes Kepler, who provided observational evidence and mathematical support for the heliocentric model. This revolution not only transformed our understanding of the cosmos but also influenced the broader scientific revolution, changing how humanity perceives its place in the universe.