<P> It was not until the 16th century that a geometric mathematical model of a heliocentric system was presented , by the Renaissance mathematician , astronomer , and Catholic cleric Nicolaus Copernicus , leading to the Copernican Revolution . In the following century , Johannes Kepler elaborated upon and expanded this model to include elliptical orbits , and Galileo Galilei presented supporting observations made using a telescope . </P>
<P> It was not until the 16th century that a geometric mathematical model of a heliocentric system was presented , by the Renaissance mathematician , astronomer , and Catholic cleric Nicolaus Copernicus , leading to the Copernican Revolution . In the following century , Johannes Kepler elaborated upon and expanded this model to include elliptical orbits , and Galileo Galilei presented supporting observations made using a telescope . </P>
who proved the sun is the center of the solar system
who proved the sun is the center of the solar system
Galileo Galilei
Galileo Galilei