can you mention some other notable works of him?
Invention of the thermoscope and various military compasses, telescopic confirmation of the phases of Venus, the observation of the four largest satellites of Jupiter, the observation of Saturn's rings, and the analysis of sunspots
Galileo Galilei
also worked in applied science and technology, describing the properties of pendulums and "hydrostatic balances", inventing the thermoscope and various military compasses, and using the telescope for scientific observations of celestial objects. His contributions to observational astronomy include the telescopic confirmation of the phases of Venus, the observation of the four largest satellites of Jupiter, the observation of Saturn's rings, and the analysis of sunspots.
where is europa located in the solar system It is orbiting Jupiter, and the sixth-closest to the planet of all the 79 known moons of Jupiter when was it discovered? 1610 by whom? Galileo Galilei state any one of its features? It is the smoothest known object in the Solar System, lacking large-scale features such as mountains and craters what is it composed of? Salts such as magnesium sulfate, sulfuric acid hydrate or abiotic organic compounds collectively called tholins who was this above person you mentioned? Astronomer, physicist and engineer
wiki:6770362
Galileo Galilei [SEP] Introduction
His contributions to observational astronomy include the telescopic confirmation of the phases of Venus, the observation of the four largest satellites of Jupiter, the observation of Saturn's rings, and the analysis of sunspots. Galileo's championing of heliocentrism and Copernicanism met with opposition from within the Catholic Church and from some astronomers. The matter was investigated by the Roman Inquisition in 1615, which concluded that heliocentrism was "foolish and absurd in philosophy, and formally heretical since it explicitly contradicts in many places the sense of Holy Scripture".