The Outer Planets

Timeline created by Mill-House
  • 100

    Jupiter

    Jupiter
    Jupiter was discovered before recorded history. It is the biggest planet in the solar system.
  • 110

    Saturn

    Saturn
    Saturn has been in the solar system for thousands of years. It is the sixth planet in the system
  • 120

    Uranus

    Uranus
    Uranus is the seventh planet in the solar system. No one discovered it until 1781 when Sir William Herschel spotted it.
  • 300

    Saturn Exploration

    Saturn Exploration
    The exploration of Saturn dates before the 16th century. There has been probes sent up and flybys also. There was also many observations on Earth that were focusing on the rings of Saturn.
  • Dec 25, 600

    Exploration of Jupiter

    Exploration of Jupiter
    Exploration of Jupiter started in the 7th and 8th century. There has been ground missions with telescopes. There was also space probe and flyby missions.
  • Neptune

    Neptune
    On September 23, 1846 Neptune was dicovered. Urbain Le Verrier and John Couch Adams were the co-discoverers.
  • Uranus Exploration

    Uranus Exploration
    In 1986, Voyager 2 made it the closest to Uranus. It was launched in 1977 and came within 81,500 km. It studied the atmosphere and surface of Uranus.