+Nicolaus Copernicus was a [Renaissance](/wiki/renaissance) astronomer who proposed a radical model of the [Solar System](/wiki/solar_system). His heliocentric theory placed the Sun, not Earth, at the center of the universe, sparking a profound shift in scientific thought.
+## See also
+- [Heliocentrism](/wiki/heliocentrism)
+- [Johannes Kepler](/wiki/johannes_kepler)
+- [Galileo Galilei](/wiki/galileo_galilei)
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