Know for his work in Astronomy
Galileo is most famously known for the discovery that Earth was not the center of the universe. Galileo found out that the Sun was the center of the universe, and that the planets all revolved around the Sun. The Catholic Church was afraid that people would misunderstand Galileo’s discoveries and wanted him to stay silent. He refused and was placed under House Arrest by order of the Church. He was accused of teaching a heresy. A heresy is a teaching that goes against religious beliefs. A heresy was a reason to be thrown in jail in those times. Galileo is also known for finding out that Jupiter has four moons revolving around it. He invented the first Pendulum Clock.