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First Image from Webb

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  • A Amarnath S

    http://nasa.gov/webbfirstimages[^] From several billion light years. Question: Will they now need to change the date of the Big Bang?

    T Offline
    T Offline
    TNCaver
    wrote on last edited by
    #4

    IIRC the current estimate is 14.5 billion years ago. If the galaxies shown are only from "several billion light years away" then I see no reason to adjust the estimate.

    If you think 'goto' is evil, try writing an Assembly program without JMP.

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    • A Amarnath S

      http://nasa.gov/webbfirstimages[^] From several billion light years. Question: Will they now need to change the date of the Big Bang?

      Mike HankeyM Offline
      Mike HankeyM Offline
      Mike Hankey
      wrote on last edited by
      #5

      Wow, awesome pic. Makes you really think; what a infinitesimal little orb we live on and if there ain't no other life out there it would be a miracle.

      The most expensive tool is a cheap tool. Gareth Branwyn JaxCoder.com

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      • T TNCaver

        IIRC the current estimate is 14.5 billion years ago. If the galaxies shown are only from "several billion light years away" then I see no reason to adjust the estimate.

        If you think 'goto' is evil, try writing an Assembly program without JMP.

        A Offline
        A Offline
        Amarnath S
        wrote on last edited by
        #6

        That's indeed my question. What if the Webb Telescope finds something beyond 14.5 billion light years? When Hubble photographed the Ultra Deep Field sometime in 2003/2004, I believe it was 13.9 billion. Now, 14.5 billion. Next, what? Will our current theories of Physics need to get changed? Don't know.

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        • Mike HankeyM Mike Hankey

          Wow, awesome pic. Makes you really think; what a infinitesimal little orb we live on and if there ain't no other life out there it would be a miracle.

          The most expensive tool is a cheap tool. Gareth Branwyn JaxCoder.com

          A Offline
          A Offline
          Amarnath S
          wrote on last edited by
          #7

          Someone had told that we are a speck on a speck on a speck on a speck on a speck ... This indeed proves that.

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          • A Amarnath S

            http://nasa.gov/webbfirstimages[^] From several billion light years. Question: Will they now need to change the date of the Big Bang?

            M Offline
            M Offline
            Maximilien
            wrote on last edited by
            #8

            The numbers are just mind boggling. The [Milky way](https://en.wikipedia.org/wiki/Milky\_Way) has around 100–400 billion stars. In that single image, there are hundreds of galaxies each with probably the same numbers of stars. And the size of the image is the width of a grain of rice at arm length distance.

            CI/CD = Continuous Impediment/Continuous Despair

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            • A Amarnath S

              That's indeed my question. What if the Webb Telescope finds something beyond 14.5 billion light years? When Hubble photographed the Ultra Deep Field sometime in 2003/2004, I believe it was 13.9 billion. Now, 14.5 billion. Next, what? Will our current theories of Physics need to get changed? Don't know.

              T Offline
              T Offline
              TNCaver
              wrote on last edited by
              #9

              My fault, it is still estimated to be between 13.5 and 13.9 billion years old. I must have been mixing it with the age of the earth (4.5 billion). :doh: But yeah, if Webb shows galaxies further than 13.n billion light years then the age will have to be revised.

              If you think 'goto' is evil, try writing an Assembly program without JMP.

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              • M Maximilien

                The numbers are just mind boggling. The [Milky way](https://en.wikipedia.org/wiki/Milky\_Way) has around 100–400 billion stars. In that single image, there are hundreds of galaxies each with probably the same numbers of stars. And the size of the image is the width of a grain of rice at arm length distance.

                CI/CD = Continuous Impediment/Continuous Despair

                J Offline
                J Offline
                jeron1
                wrote on last edited by
                #10

                Quote:

                And the size of the image is the width of a grain of rice sand at arm length distance.

                Even better. :)

                "the debugger doesn't tell me anything because this code compiles just fine" - random QA comment "Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst "I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle

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                • A Amarnath S

                  http://nasa.gov/webbfirstimages[^] From several billion light years. Question: Will they now need to change the date of the Big Bang?

                  J Offline
                  J Offline
                  jmaida
                  wrote on last edited by
                  #11

                  at 13.5 billion years ago, what we see may not be what's there now

                  "A little time, a little trouble, your better day" Badfinger

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                  • T TNCaver

                    My fault, it is still estimated to be between 13.5 and 13.9 billion years old. I must have been mixing it with the age of the earth (4.5 billion). :doh: But yeah, if Webb shows galaxies further than 13.n billion light years then the age will have to be revised.

                    If you think 'goto' is evil, try writing an Assembly program without JMP.

                    M Offline
                    M Offline
                    matblue25
                    wrote on last edited by
                    #12

                    Ah - but they won't - unless someone else comes up with a different age of the universe. Distance to objects is determined by redshift. The higher the value, the further away. But it's not linear. A redshift of infinity is, by definition, at a distance in light years of the age of the universe, whatever that current value might be accepted as.

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                    • A Amarnath S

                      http://nasa.gov/webbfirstimages[^] From several billion light years. Question: Will they now need to change the date of the Big Bang?

                      P Offline
                      P Offline
                      Peter Adam
                      wrote on last edited by
                      #13

                      [To put it into context](https://imgur.com/gallery/QupCI1g)

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