0
   

Expansion of the universe

 
 
aperson
 
Reply Mon 28 Aug, 2006 10:05 pm
Here is where this has come from.

Just wondering, as I asked in the above forum, what is the speed at which the universe is expanding, and what would happen if you went faster than it is expanding?
  • Topic Stats
  • Top Replies
  • Link to this Topic
Type: Discussion • Score: 0 • Views: 798 • Replies: 5
No top replies

 
aperson
 
  1  
Reply Tue 29 Aug, 2006 09:02 pm
Doesn't anybody know anything?
0 Replies
 
Terry
 
  1  
Reply Wed 30 Aug, 2006 07:24 am
The universe is expanding at about 70 kilometers/second/megaparsec.

Hubble's law

WMAP

You would have to travel faster than this to get anywhere, but that is not difficult since gravitationally-bound areas do not expand, and the speed of celestial objects greatly exceeds the local expansion (the Milky Way galaxy has a relative velocity of about 600 km/second).

Interestingly, the relative velocity of distant galaxies can exceed c (the speed of light) since they are not traveling through space but being carried with it.
0 Replies
 
aperson
 
  1  
Reply Wed 30 Aug, 2006 06:36 pm
Cheers Terry.
0 Replies
 
stuh505
 
  1  
Reply Thu 31 Aug, 2006 08:04 am
Quote:
Interestingly, the relative velocity of distant galaxies can exceed c (the speed of light) since they are not traveling through space but being carried with it.


Is this faster than c travel part of the solution to olber's paradox?

Quote:
The universe is expanding at about 70 kilometers/second/megaparsec.


This estimate has been revised to 77...but as I understand it, the Hubble "constant" is actually not a constant, and there should be some rate of change that is the true constant, but what is the rate of change?
0 Replies
 
dyslexia
 
  1  
Reply Thu 31 Aug, 2006 08:14 am
eventually the night sky will just be dark.
0 Replies
 
 

Related Topics

Evolution 101 - Discussion by gungasnake
Typing Equations on a PC - Discussion by Brandon9000
The Future of Artificial Intelligence - Discussion by Brandon9000
The well known Mind vs Brain. - Discussion by crayon851
Scientists Offer Proof of 'Dark Matter' - Discussion by oralloy
Blue Saturn - Discussion by oralloy
Bald Eagle-DDT Myth Still Flying High - Discussion by gungasnake
DDT: A Weapon of Mass Survival - Discussion by gungasnake
 
  1. Forums
  2. » Expansion of the universe
Copyright © 2025 MadLab, LLC :: Terms of Service :: Privacy Policy :: Page generated in 0.04 seconds on 06/17/2025 at 12:49:31