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Explanation:
Galileo Galilei was an Italian astronomer and one of the first scientists in proposing a heliocentric theory during the 17th century.his theory stated that the Sun was the center of the Solar System and the Earth revolved around it. His theory was controversial because the religious authorities believed the earth is God's important creation and was the center in the Universe and the Sun and moon revolved around the planet. Due to his theory, Galileo was judged and spent the rest of his life under house arrest.
