Describe the contributions of Galileo to astronomy and the Copernican revolution. Include in your response a list of observations made by Galileo of the Moon, the Sun, Venus, and the Moons of Jupiter. Be specific, describe what he saw, the conclusions he drew from these observations, and how these conclusions either supported or refuted the prevailing model of the Cosmos.
Galileo was an Italian astronomer, engineer and also a physicist and has also been crystalized the farther of modern astronomy and modern physics. While in school he majored on speed and velocity, gravity and free fall. His contribution to observational anatomy includes the telescopic observation of the phases of Venus, the observation of rings around the planet of Saturn, the discovery of the four largest satellites and the conclusive analysis of sunspots. He also invented the Galileo escapement. In addition, his invention revolutionized science and lead to the discovery of mountains on the moon, the spots on the sun and the four moons of Jupiter and further cemented the theory the earth and other planets revolve around the sun.