What scientist discovered the largest moons of Jupiter?

The largest moons of Jupiter, known as the Galilean moons, were discovered by the Italian astronomer Galileo Galilei in 1610. These four moons—Io, Europa, Ganymede, and Callisto—were the first objects found to be orbiting another planet, providing crucial evidence against the geocentric model of the universe. Galileo's observations marked a significant advancement in astronomy and our understanding of celestial bodies.