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NGC 1818: A Young Globular Cluster

Discussion in 'Tech, Science, and Space' started by Robby, Aug 6, 2008.

  1. Robby

    Robby The Robot

    Joined:
    Jul 28, 2004
    Location:
    Terra
    NGC 1818: A Young Globular Cluster

    [​IMG]


    NGC 1818: A Young Globular Cluster
    Credit: Diedre Hunter (Lowell Obs.) et al., HST, NASA

    Explanation: Globular clusters once ruled the Milky Way. Back in the old days, back when our Galaxy first formed, perhaps thousands of globular clusters roamed our Galaxy. Today, there are perhaps 200 left. Many globular clusters were destroyed over the eons by repeated fateful encounters with each other or the Galactic center. Surviving relics are older than any Earth fossil, older than any other structures in our Galaxy, and limit the universe itself in raw age. There are few, if any, young globular clusters in our Milky Way Galaxy because conditions are not ripe for more to form. Things are different next door, however, in the neighboring LMC galaxy. Pictured above is a "young" globular cluster residing there: NGC 1818. Observations show it formed only about 40 million years ago - just yesterday compared to the 12 billion year ages of globular clusters in our own Milky Way



    (Via NASA)
     
  2. Kevin

    Kevin Code Monkey Staff Abductee

    Joined:
    Mar 20, 2004
    Location:
    Pennsylvania
    "There are those who believe that life here began out there..."

    I think NASA is trying 'punk' us and released an old backdrop from the 70's Battlestar Galactica! :eek:



    {Nobody else notice that it is two images spliced together? Take a look at the upper right in particular.}
     

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