Back to Home

Blackholes Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Blackholes I | Post
Login

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
13 Billion Light Years Away - Basic Question !

Forum List | Follow Ups | Post Message | Back to Thread Topics
Posted by Michael on October 14, 2001 19:07:39 UTC

Hi,

I am new to this forum. I just opened my account. I am looking for an answer to the following "puzzle".

I have been scanning through some Hubble telescope images. One of them depicts a galaxy very far away - most distant object ever photographed by mankind. This is the exact quote: "Its light is only reaching us now from a time when the universe was but 7% its current age of approximately 14 billion years. This places the young galaxy as far as 13 billion light-years away". OK, do you see the paradox here ?

How can there be a distance in out universe that it would take light 13 billion years to traverse it ? Our universe is 14 billion years old. It means it expanded for this time. But expansion occurred with speed much less than speed of light. So this "bubble" or "sphere" - however we call our universe could have grown only so much in the last 14 billion years - certainly not enough to generate two max-distance points within it that it would take light 13 b. years to cover it.

Does anyone follow what I am talking about ?

Are we dealing here with some sort of general relativity effect that would explain it ?

Thanks
Michael J.
Oakland, CA

Follow Ups:

Login to Post
Additional Information
Google
 
Web www.astronomy.net
DayNightLine
About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
Unless otherwise specified, web site content Copyright 1994-2024 John Huggins All Rights Reserved
Forum posts are Copyright their authors as specified in the heading above the post.
"dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
are trademarks of John Huggins