Galileo was an Italian astronomer who.

played a major role in the Scientific Revolution of the 16th and 17th centuries. He is best known for his improvements to the telescope and his astronomical observations, which provided evidence for the heliocentric model of the solar system proposed by Copernicus. Galileo's support for the heliocentric model put him at odds with the Catholic Church, leading to his trial and house arrest in 1633. Despite this, his work laid the foundation for modern astronomy and physics.

- revolutionized astronomy
- mathematics
- physics
- and other fields of science