Galileo di Vincenzo Bonaiuti de’ Galilei (GAL-ih-LAY-oh GAL-ih-LAY-ee; 15 February 1564 – 8 January 1642), commonly referred to as Galileo, was an Italian astronomer, physicist and engineer, sometimes described as a polymath, from the city of Pisa, then part of the Duchy of Florence. Galileo has been called the “father” of observational astronomy, modern physics, the scientific method, and modern science.
