Timeline of space discovery

  • 340 BCE

    Aristotle

    Aristotle
    He suggested that Earth was the centre of the solar system
  • 340 BCE

    Aristotle

    Aristotle
    He suggested that the Earth was the centre of the solar system
  • 200 BCE

    Aristarchus

    Aristarchus
    He suggested that the idea of how the Sun was the centre of the Solar System
  • 200 BCE

    Aristarchus

    Aristarchus
    He suggested the idea of the Sun being the centre of the solar system
  • 150 BCE

    Ptolemy

    Ptolemy
    The Earth is still the centre of the Solar system. Ptolemy suggested the idea of epicycles and how the planets moved
  • 150 BCE

    Ptolemy

    Ptolemy
    He suggested that the idea of epicycles to suggest how the planets moved
  • Period: 150 BCE to 1543

    Timespan

  • 1543

    Corpenicus

    Corpenicus
    he suggested that the Sun was the centre of the solar system
  • 1543

    Corpenicus

    Corpenicus
    He suggested that the sun was the centre of the solar system
  • Galileo

    Galileo
    he made improvements on the telescope, he was the first to identify sunspots and see the 4 brightest moons of Venus
  • Johannes Kepler

    Johannes Kepler
    He suggested three laws of planetary motion and the orbits were ellipses and not circles
  • Issac Newton

    Issac Newton
    He suggested the idea of planetary gravity
  • William Herschel

    William Herschel
    Discovered Uranus
  • Edwin Hubble

    Edwin Hubble
    First person to suggest that the universe was expanding which led to the big band theory.