-
100
Aristotle
300bc Aristotle belived in the geocentric model of the universe. He thought the earth was stationary and the universe revolved around it in perfect circle. -
100
Ptolmey
100ad Ptolmey agreed with Aristotle in the Geocentric model of the universe. People saw flaws in Aristotles model of the universe so he came up with a eplanation for it. -
Jan 1, 1500
Nicolaus Copernicus
Nicolaus Copernicus first proposed the heliocentric model of our solar system. This was the planets orbiting the sun, which was in the center of our solar system. -
Galileo Galilei
Galileo Galilei belived in the heliocentric model of the universe. He created the telescope which helped further the investigation of space. -
Isaac Newton
Isaac Newton belived in the heliocentric model of the universe. He discovered Universal Gravity which is the same Gravity that makes a apple fall on Earth, keeps the planets orbiting the sun.
