609, Galileo heard about the invention of the spyglass, a spyglass made distant objects appear closer. Then, Galileo improved the spyglass with his mathematics and technical skills to make the telescope. Later that year, Galileo was the first person to look at the Moon through a telescope. With this discovery, he found that the Moon wasn’t smooth, but was mountainous and pitted. As well as discovering Jupiter's four Moons. From Galileo's observations, it strengthened his belief in Copernicus’s theory that Earth as well as other planets revolve around the Sun. People in Galileo’s time believed that the Earth was the center of the universe and that the Sun and planets revolved around it.Newton was taught the standard curriculum but was fascinated