The History of astronomy

By Paige and Melody
  • 140

    Ptolemy

    Ptolemy
    Predicted the motion of planets better than any other theory at the time
  • Apr 27, 1500

    Tycho Brahe

    Tycho Brahe
    Thought the sun and moon followed around Earth and other planets followed around the sun, although it was incorrect, his observation helped future astronomers.
  • Apr 27, 1515

    Johannes Keppler

    Johannes Keppler
    Determined that the planets revolve around the sun in an oval shaped orbit.

  • Galileo Galilei

    Galileo Galilei
    Made a telescope so he can see planets with more than a naked eye.

  • Isaac Newton

    Isaac Newton
    Showed that the universe attracts each other by using force called gravity

  • Edwin Hubbles

    Edwin Hubbles
    Proved that the universe exisisted beyond our galaxy.