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B The COM of the Cosmos?

  1. Oct 13, 2018 at 11:02 PM #1
    Does the term center of mass of universe mean anything? Why why not?
  2. jcsd
  3. Oct 13, 2018 at 11:08 PM #2


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    Gold Member

    No, for something to have a center of mass, it has to have a center and the universe does not.

    I recommend the link in my signature
  4. Oct 13, 2018 at 11:29 PM #3
    What do you mean by centre? does every body has a geometrical centre what does geometrical centre even mean?
    Last edited by a moderator: Oct 15, 2018 at 12:42 PM
  5. Oct 14, 2018 at 2:21 AM #4
  6. Oct 14, 2018 at 6:38 AM #5


    Staff: Mentor

    Not in standard cosmology. The standard cosmology assumes that the universe is spatially homogenous and isotropic. The homogeneity precludes having a center.
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