Galileo Galilei, his telescopic discoveries, support of Copernican theory, conflict with Catholic Church leading to imprisonment, and influence on future scientists like Newton and Kepler.Galileo Galilei, his telescopic discoveries, support of Copernican theory, conflict with Catholic Church leading to imprisonment, and influence on future scientists like Newton and Kepler.Galileo Galilei, his telescopic discoveries, support of Copernican theory, conflict with Catholic Church leading to imprisonment, and influence on future scientists like Newton and Kepler.