Since Galileo was an astronomer, he too most likely saw the movement of the star's placement in the sky, just like Copernicus. However, because of his support, Galileo came under intense scrutiny. The introduction states: “Galileo was forced to renounce his scientific discoveries and was sentenced to perpetual house arrest. His books were burned. (p.191). This action taken by the Church shows how Galileo's later discoveries caused fear because they went against some of their teachings. Fortunately, his trial became the platform on which his work was safeguarded and disseminated throughout Europe, which certainly helped him gain supporters, inducing more revolutionary changes in thought. However, the reason why Galileo's discoveries gained greater acceptance was not just due to the punishment meted out by the Church. In reality, I think he gained more support because he created an instrument to help him better see and understand the spheres of the world. Although the idea for this instrument was not entirely his own, he still managed to make one in which he said he "perceived objects sufficiently large and close, because they appeared three times closer and nine times larger than those seen with the naked eye. (p.192). But his work does not stop there. “It would be superfluous to enumerate the number and importance of the advantages of such an instrument... I often observed with astonished pleasure both the planets and the fixed stars... I began to search (and I finally found) a method by which I could measure their distances” (p.192). Actions like these are why I believe people started to change and believe in a heliocentric system because they had plausible information.