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Into what is our universe expanding ??

  1. Dec 30, 2015 #1
    Well I'm just a highschool student but I'm very passionate about Astronomy.
    I usually ask myself that into WHAT is our Universe is expanding if the expanison theory is true !
    I'll be waiting for responses..
  2. jcsd
  3. Dec 30, 2015 #2


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    Gold Member

    It is not expanding "into" anything. Google "metric expansion" for more discussion.
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