Definition
Galileo Galilei was a pivotal Italian astronomer, physicist, and engineer whose work revolutionized science. He championed the heliocentric theory, placing the Sun at the center of the solar system. Think of him as the ultimate truth-seeker challenging the status quo. His observations with the telescope provided compelling evidence supporting this model. Galileo faced opposition from the Church for his views, leading to a famous conflict. His contributions laid the foundation for modern astronomy and physics.