# SOLAR SYSTERM

Johannes Kepler, a 17th Century astronomer and mathematician, published three laws of planetary motion that improved upon Copernicus’s heliocentric model. These laws were made possible by years …

Johannes Kepler, a 17th Century astronomer and mathematician, published three laws of planetary motion that improved upon Copernicus’s heliocentric model. These laws were made possible by years …

Johannes Kepler, a 17th Century astronomer and mathematician, published three laws of planetary motion that improved upon Copernicus's heliocentric model. These laws were made possible by years of …