The Copernican Revolution refers to the fundamental shift in astronomical thought that occurred in the 16th century, when Nicolaus Copernicus proposed a heliocentric model of the universe, positioning the Sun at its center instead of the Earth. This revolutionary idea challenged the long-held Aristotelian view of an Earth-centered universe and laid the groundwork for modern astronomy. The Copernican Revolution not only transformed scientific understanding but also had profound implications for philosophy, religion, and culture.