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150
Ptolemy Universe - Geocentric - Earth Centered
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Period: 150 to Apr 15, 1543
Catholic Church believe Heliocentric Universe Theory
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Apr 15, 1543
Copernicus - Heliocentric System - Planets in Cricular Orbits
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Bruno - Infinite Universe - Sun nor Earth at the Center
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Brahe - Geocentric + Heliocentric - Sun Revolves around Earth, Planets revolve around Sun
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Kepler - 3 Laws - 3 Laws are Created that tell about Steller Movement
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Galileo - 1st Telescope - Discoveres heliocentric system
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Newton - Mathematical Principles of Natural Philosopy - Confirm
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Bessel - Paralax - The First Steller Paralax is Noted
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Leaviitt - Size of Steller Objects - Measured by brightness/periodicity
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Einstein - Theory of Relativity -Foundation for mordern Cosmology
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Lemaitre - Early Version of Big Bang - First Version
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Hubble - Hubble Law - Speed that galaxies move away from earth
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Zwicky - Dark Matter - The first indication of dark matter is discovered
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Gamow - "Orgins of Chemical Elements" - basis of modern big bang theory
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Hoyle - Disagrees with big bang - Universe has always looked like it presently does
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Penzias, Wilson - Microwave backround radiation - great evidence of big bang
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Rubin, Ford - Stellar Movements on Edge of Galaxies - Evidence of dark matter
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COBE - FInds microwave backround - Finds temperature of 2.726 degress above absolute zero
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U.S. and Australian Scientists - Universe expantion - shows that the universe is constantly moving apart while getting consistently faster (dark matter)
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WMAP - measures temperature differences - shows universe was irregular
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Universe Maps - shows distribution of galaxies is not uniform
