Understanding through Discussion


Welcome! You are not logged in. [ Login ]
EvC Forum active members: 85 (8937 total)
Current session began: 
Page Loaded: 09-21-2019 7:22 AM
25 online now:
PaulK, RAZD (2 members, 23 visitors)
Chatting now:  , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
Newest Member: ssope
Post Volume:
Total: 861,868 Year: 16,904/19,786 Month: 1,029/2,598 Week: 275/251 Day: 3/43 Hour: 0/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Size of the Universe
Hoof Hearted
Junior Member (Idle past 3388 days)
Posts: 24
From: Chorley, Lancs, UK
Joined: 03-20-2007


Message 1 of 2 (493425)
01-08-2009 7:00 PM


I have no relevent qualifications, so this may be a stupid question. Please go easy on me.

Some time ago I posted a question asking how it could be that the observable universe is 156 Billion light years across, when the Universe itself is only 14.5 Billion years old and nothing can travel faster the light. Of course the answer was 'Inflation'. When the 4 forces were unified into a single force, the early universe expanded much faster than the speed of light. Then presumably all the stars in the universe formed long after inflation had ceased.

Ok, so that explains how the universe came to be it's present size. But how is it possible that we can see objects which are so far away? How did light from stars at the edge of the observable universe travel here in order that we could see them? Surely it must be the case that if an object is 75 billion light years away, it must take 75 billion years for their light to reach us?

Edited by Hoof Hearted, : No reason given.


  
AdminNosy
Administrator
Posts: 4754
From: Vancouver, BC, Canada
Joined: 11-11-2003


Message 2 of 2 (493432)
01-08-2009 7:49 PM


Thread copied to the Size of the Universe thread in the Big Bang and Cosmology forum, this copy of the thread has been closed.
Newer Topic | Older Topic
Jump to:


Copyright 2001-2018 by EvC Forum, All Rights Reserved

™ Version 4.0 Beta
Innovative software from Qwixotic © 2019