Giovanni Cassini

Giovanni Cassini was an Italian astronomer and mathematician from the 17th century renowned for his work in observing planets and moons. He discovered the Cassini Division, a gap in Saturn's rings, and made precise measurements of the position of Mars and other celestial bodies. Cassini also helped develop improved telescopes and contributed to our understanding of the solar system's structure. His work laid important foundations for modern astronomy and space science, making him a key figure in the history of celestial observation.