Eventos
Aristotle describes his geocentric model of the universeAristarchus proposes a heliocentric model of the universe, but is widely ignored.Ptolemy improves upon the geocentric model to account for retrograde planetary movementsFerdinand Magellan is the first European to observe the Magellanic Clouds, later recognised as galaxies beyond ours.Nicholas Copernicus publishes a paper that presents an improved heliocentric model from Aristarchus' version.Giordano Bruno burnt at stake for promoting heliocentric modelKepler publishes a paper explaining the movement of planets with a heliocentric model and elliptical orbits.Galileo Galilei observes the moons of JupiterGalileo publishes a paper arguing in favour of the heliocentric modelIsaac Newton publishes Principia Mathematica which explains his theory of gravity.Thomas Wright suggests that the Milky Way is a flattened disk of stars and that nebulae might be other galaxies.William Herschel discovers UranusWilliam Herschel constructs the first map of the Milky Way galaxyFriedrich bassel observes stellar parallax.
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