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30,000 BCE
Bone carvings keep track of phases of Moon
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4000 BCE
Mesopotamians observe space through the tops of their pyramids
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2500 BCE
Stonehedge has built
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2000 BCE
Temple of Amen-Ra was built
Egypt -
200
Hiparchus classifies the stars to their brightness
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200
Ptolemy suggested the geocentric theory (the planets and Sun revolved around the Sun)
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300
Aristarchus of Samos suggested that the Earth revolved around the Sun
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Sep 12, 1543
Copernicus published the heliocentric theory ( the planets revolved around the Sun)
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Tyco Brahe carried out very detailed observation of the planets.
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Galileo used a telescope for the first time
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Isaac Newton built the first telescope using mirrors instead of lenses
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Newton published a book explaining the laws of the movement of the planet
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Edmund Halley explained Newton´s laws and predicted the return of the comet in 1758
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W. Herschel discoverd Uranus
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F. W. Bessel measured the distance from a star
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Adams, Galle and Leverrier discovered Neptune
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Astrophysiscs was foundd thanks to the spectroscope
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E. P. Hubble proved that some nebulas are actually galaxies
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C. Tombaugh discovered Pluto
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Discovery of the first extra-solar planets
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NASA approves mission to Mars 2018