who was this above person you mentioned?
Astronomer, physicist and engineer
Galileo Galilei
Galileo di Vincenzo Bonaiuti de' Galilei (; 15 February 1564 – 8 January 1642) was an Italian astronomer, physicist and engineer
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
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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".