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    curiousbeing1's Avatar
    curiousbeing1 Posts: 1, Reputation: 1
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    #1

    Mar 17, 2013, 03:30 AM
    Could every individual galaxy in the Universe be a BIG BANG.
    Could every galaxy in the Universe be itself a BIG BANG? I ask in regards to how many Millions of galaxy's there are in the Universe and that if you were to step outside even our own galaxy, it would be like stepping into EMPTY SPACE where there would be NOTHING until you STEP BACK into a galaxy? So, there would be not one BIG BANG that created everything. But Millions of BIG BANGS that happened in EMPTY SPACE?
    Curlyben's Avatar
    Curlyben Posts: 18,470, Reputation: 1857
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    #2

    Mar 17, 2013, 03:38 AM
    Interesting idea, but not what is currently believed.
    Good place to start: Galaxy formation and evolution - Wikipedia, the free encyclopedia
    ebaines's Avatar
    ebaines Posts: 12,130, Reputation: 1307
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    #3

    Mar 18, 2013, 05:47 AM
    It's fairly evident that each galaxy did not form in its own "big bang" because the stars within the galaxy are not moving away from each other. In general the stars within a galaxy are in orbit about the center of mass of the galaxy. And hence revolvng about the center and not flying away from it. This is in contrast to the general motion of galaxies which is away from each other - in other words the distance between galaxies is getting larger over time as the universe expands, and the rate at which galaxies are moving apart is proportional to the distance between them (per Hubble's law). This expansion is the main evidence for the Big Bang. It's analogous to what happens to the fragments of a grenade when it explodes - the relative velocity of one fragment of the grenade to another is proportional to how far apart they are.
    iminlove26's Avatar
    iminlove26 Posts: 26, Reputation: 1
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    #4

    May 30, 2013, 11:03 PM
    No. If that was the case then all stars in galaxies would have been shattered Far away from its centre moving outwards rather than revolving around the Black hole in their center. But What you say does not make sense.
    smkanand's Avatar
    smkanand Posts: 602, Reputation: 56
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    #5

    May 31, 2013, 04:35 AM
    Big bang is not big enough when it comes to universe. Galaxies are moving away from each other. According to one thought there are billions of galaxies with same amount of stars in it.

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