Kepler studied during the 1500’s and made some extraordinary firsts in astronomical discoveries (https://www.nasa.gov/kepler/education/johannes (Links to an external site.)Links to an external site.). Challenges that Kepler cracked was the overall concept of vision. He created eyeglasses for near and farsighted eyesight with use of studying refraction and magnification, stirring ideas of the telescope. Kepler’s First Law also, from studying circles and patterns, was the first to make it a fact that planets travel in an elliptical path. …show more content…
One challenge he overcame was during his lifetime there was not an accurate way of keeping track of time and Galileo responded by studying motion and created the first pendulum clock toward the end of his lifetime. Awed by “three stars in the Heavens”, Galileo also discovered “small but very bright” (https://www.space.com/15589-galileo-galilei.html (Links to an external site.)Links to an external site.) stars, now known as planets and Jupiter’s moons, and piqued his interest to begin observational studies leading to creation of the spyglass and furthering to telescope