PRESENTATION OUTLINE
Aristotle
Lived 384-322BCE
Thought the moon, sun, planets, and stars went around the earth in a series of circles
Aristarchus
310-230BCE
Proposed heliocentric model of the solar system
Ptolemy
100-170 CE
Developed a detailed geocentric model used for the next 14 centuries
Nicolaus Copernicus
1473-1543
Made first detailed heliocentric model
Johanenes Kepler
1571-1630
Made 3 principles which are known as Kepler's 3 laws
Galileo Galilei
1564-1642
Approached questions in a method known today as the scientific method
Isaac Newton
1642-1727
Removed last
Doubts of
A heliocentric
Model of the
Cosmos
Edwin Hubble
1889-1953
Provided
substantial
evidence that
many formally
known nebulae
were actually
galaxies
