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Publishes "On the Revolutions of Celestial Bodies", forming the heliocentric solar system theory
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Published "On the New Star", which refuted the idea of an unchanging universe
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Galileo proposes the heliocentric univese theory. He also made a telescope that could magnify 30X
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Reveals his third and final law of planetary motion, leads to rejection of the Aristotelian system
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Published On the Motion of the Heart and Blood, which defined many of the properties of systemic circulation
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Published Meditations on First Philosophy, now a standard text at many universities. Also quoted as saying "I think, therefore I am"
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Published Philosophiæ Naturalis Principia Mathematica, which defined most of the modern laws of motion
