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382 BCE
Aristotle
384-322 Aristotle was and some say still is an ancient Greek Philosopher that was greatly appreciated by medieval muslim scholars. He went to school at Plato's academy in Athens then later tutored Alexander the great -
100
Ptolemy
Ptolemy was famous for in Greek areas for forming the hypothesis of Almagest and Planetary. He believed that the Earth was stationary and that everything orbited around Earth. -
1473
Copernicus
He was a polish astronomer. His main focus was that the Earth orbited once daily on it's own axis. -
1546
Tycho Brahe
He is a danish astronomer that was originally trying to observe the heavens. He failed but discovered awe struck in astrological images through a telescope. -
1546
Galileo
He was an Italian astronomer. He studied the basic law of falling bodies.He also constructed a telescope to study lunar craters. With this telescope he discovered that their are moons that orbit around Jupiter. -
1570
Hans Lippershey
He was a dutch eyeglass maker who invented the first telescope. He named it "kijker" which means looker. He didn't get a patent for it because many people already knew about it and it was easy to copy. -
1571
Johannes Kepler
He is a German astronomer who had discovered three things. He discovered that the sun is the main focus of orbit, that the planetary orbit is proportional to the area law , and that there is an exact relationship between planet's periodic times. -
Giovanni Cassini
Italian astronomer who discovered four of Saturn's moons. He also discovered the make up of Saturn's rings -
Sir Isaac Newton
Physicist and mathematician who invented the laws of motion. One of his theories was that white light was made up of all spectrum. Another was that light was made up of particles. -
William Herschel
He is a British astronomer
