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I am wondering, after the Milky Way merges with Andromeda and other near by dwarf galaxies and globular clusters, will it then merge with galaxies in the Virgo cluster and even Laniakea? And if so will the eventual result be one super giant galaxy or smaller but still large galaxies orbiting each other whilst the rest of the universe has expanded out of sight?

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    $\begingroup$ Perhaps a better fit for Astronomy SE. $\endgroup$
    – StephenG
    Apr 19 '20 at 2:29
  • $\begingroup$ @StephenG Ah yes, I will ask on there, thanks. $\endgroup$ Apr 19 '20 at 10:55
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    $\begingroup$ After too many mergers, the Milky Way will lose focus on its core business, become harder to manage, and start losing market share. Next comes a leveraged buyout, followed by spinning off bits into their own galaxies, or being shut down and tossed into black holes. Such is the life cycle of a galaxy. $\endgroup$
    – Jon Custer
    Apr 20 '20 at 1:26
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    $\begingroup$ Real Estate Ingestion Trusts (or REITs) are the new thing, yes. $\endgroup$
    – Jon Custer
    Apr 20 '20 at 2:05
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    $\begingroup$ (Sorry, too much stay-at-home). $\endgroup$
    – Jon Custer
    Apr 20 '20 at 2:06
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I unfortunately do not have any sources at hand, but if i understand correctly then no - only the galaxies in the Local group will merge and then be separated from everything else. The Local group itself is moving towards The Great Attractor, however expansion of the universe is slightly faster.

I might be wrong as i read it somewhere a few years ago, but hope that this quick answer helps.

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