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Astronomers Find Farthest Known Galaxies
Space.com on Yahoo ^ | 7/10/07 | Robert Roy Britt

Posted on 07/10/2007 2:52:26 PM PDT by NormsRevenge

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To: Vroomfondel

“Space got bigger.”

Whew, I’m glad it didn’t only happen to me then. :)


21 posted on 07/10/2007 7:17:35 PM PDT by Grig
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To: gcruse
The speed of light does not limit the speed of universal expansion.

So does that mean that matter that "rides" on space is not subject to the speed of light and thus has traveled faster than the speed of light to get that distance from our galaxy? And that universal expansion exceeds light speed? And how long until that matter slows down to "under" light speed?

Doesn't this explanation imply that there is a possibility these galaxies are now as much as 26 billion light years away and we are seeing the light from where they were 13 billion years ago?

22 posted on 07/11/2007 8:47:46 AM PDT by AbeKrieger (1) Border security first. 2) Repeat until #1 complete, then resume discussion.)
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To: AbeKrieger

“So does that mean that matter that “rides” on space is not subject to the speed of light and thus has traveled faster than the speed of light to get that distance from our galaxy”

Maybe I should said “sits” on space rather than “rides” on space. A galaxy outside our local group that is not gravitationally bound to us sits on a piece of space that is moving away from us because of universal expansion.

Space is expanding between us. Neither of us is moving at faster than light speed, but the distance between us could grow, I suppose, at a rate faster than light travels if the distance increase is because of expansion. The individual galaxy is bound internally and possibly locally by gravitational forces keeping its constituents together.


23 posted on 07/11/2007 9:02:39 AM PDT by gcruse (Let's strike Iran while it's hot.)
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To: NormsRevenge
Astronomers have found evidence for the most distant galaxies ever detected.

I'm guessing English 101 isn't what it used to be...

24 posted on 07/11/2007 9:56:12 AM PDT by Inquisitive1 (I know nothing except the fact of my ignorance - Socrates)
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