Notices
Results 1 to 5 of 5
Like Tree1Likes
  • 1 Post By SpeedFreek

Thread: Discrepancy between age and size universe?

  1. #1 Discrepancy between age and size universe? 
    New Member
    Join Date
    May 2012
    Posts
    1
    It is generally accepted that our universe (otherwise my apologies for posting in the wrong universe..) is about 13.7 billion years old. However we are able to observe a universe that is about 93 billion lightyears across...

    anybody around that can explain the discrepancy in lay terms?


    Reply With Quote  
     

  2.  
     

  3. #2  
    Quagma SpeedFreek's Avatar
    Join Date
    Jan 2011
    Location
    London, UK
    Posts
    2,787
    The universe expands faster than light.

    Have a read of this pdf file for more info (note: the first page is blank)

    http://www.mso.anu.edu.au/~charley/papers/LineweaverDavisSciAm.pdf

    Or, if you are feeling adventurous, you could have a look at these posts I made a while back, which go some way towards explaining how it all can be thought to work:

    Looking back in time....


    Ascended likes this.
    Reply With Quote  
     

  4. #3  
    Ascended Member Ascended's Avatar
    Join Date
    Apr 2012
    Location
    Norfolk
    Posts
    3,418
    Quote Originally Posted by SpeedFreek View Post
    The universe expands faster than light.

    Have a read of this pdf file for more info (note: the first page is blank)

    http://www.mso.anu.edu.au/~charley/papers/LineweaverDavisSciAm.pdf

    Or, if you are feeling adventurous, you could have a look at these posts I made a while back, which go some way towards explaining how it all can be thought to work:

    Looking back in time....
    Hey SpeedFreek, thanks. I have just read your previous post and that's really helped to educate me, I didn't understand the dicrepancy either, and that was a really useful explanation.
    Everything has its beauty, but not everyone sees it. - confucius
    Reply With Quote  
     

  5. #4  
    Forum Senior Booms's Avatar
    Join Date
    Sep 2008
    Location
    The perceptual schematic known as earth
    Posts
    361
    Doesn't Defiler's point still stand?

    Yep, the universe expands faster than light and suchlike, BUT, we can still OBSERVE a universe 93billion lightyears wide. For that to happen, doesn't that mean the light has travelled to us from 93 billion lightyears away...meaning it's been travelling for nearly nine times longer than the universe has existed?
    It's not how many questions you ask, but the answers you get - Booms

    This is the Acadamy of Science! we don't need to 'prove' anything!
    Reply With Quote  
     

  6. #5  
    Comet Dust Collector Moderator
    Join Date
    Mar 2011
    Location
    New Jersey, USA
    Posts
    2,848
    No, it means that the light that was emitted 13+ billion years ago from that point it was much closer; due to the expansion of the Universe, that point is now 48 million miles away.
    Reply With Quote  
     

Similar Threads

  1. Replies: 9
    Last Post: April 17th, 2011, 08:20 AM
  2. Size of the universe!
    By icarus2 in forum Personal Theories & Alternative Ideas
    Replies: 1
    Last Post: January 21st, 2010, 12:41 AM
  3. Regarding the age of the Universe.
    By Twixly in forum Astronomy & Cosmology
    Replies: 14
    Last Post: May 22nd, 2008, 10:58 AM
  4. Age of Universe Question
    By ajg624 in forum Astronomy & Cosmology
    Replies: 24
    Last Post: March 14th, 2008, 05:51 AM
  5. Particles and the age of the universe
    By zinjanthropos in forum General Discussion
    Replies: 0
    Last Post: December 27th, 2005, 11:23 PM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •