gallaxies far way have a redshift but what about those beyound that?

Question

what gallaxies are beyond that expanding into? if the theories are true, space is infinate they say. we are talking about something real so how can they be sure what that means. that is where my understanding ends. please tell how can space be infinite? nothing but the math term pi is infinite. purely concocted arbitary and based on a theoretical math term like avagodro's number. i just don't know.

Wish Lindajune had read this question a little more carefully. Just another blob of of the obvious and the fails to answer the question because she didn't read, or doesn't understand the question. I posted a separate question on these kind of bs anwswers.

These answers a pathetic!!!!

Answer 1

Maybe you need to think through your question carefully and re-phrase it.

I've read it several times and it appears to me the answers attempted to address your question.

"what gallaxies are beyond that expanding into?" appears to be the question. Seems to me that question is answered.

I hope you'll work on the question and re-post it. I'd like to understand what you're getting at.

Answer 2

Infinity is very hard for us to really comprehend, because it goes against everything we are familiar with. Everything we know has an end - a road, a table, the land, etc.
Digging further into the expansion theory implies that there are galaxies so far away (and therefore receding from us at or more than the speed of light - never mind the details on that, its a lot of reading) that there is no way we can see them or detect them.
So the "observable" universe is about 93 billion light years across, but the actual universe could be much larger than that - that's where "infinity" comes in.

I'm content right now with worrying about what's in the universe we can see. There are still a lot of cosmological questions that have yet to be answered. Maybe when we answer some of the fundamentals (such as what caused the Big Bang, what happened 'before' it, etc.) we might get a glimpse of infinity.

Answer 3

Beyond what? The further away a galaxy is the greater its redshift.

Galaxies beyond the universe? That makes no sense. The universe is, by definition, everything.

Maybe the universe is infinite. Maybe not. We can see no further back in time than the Big Bang, that being the earliest know event. Either way, the universe is big enough that it makes no difference. At any rate, there is no "outside" of the universe.

Incidentally, pi is not infinite. Pi is equal to approximately 3.14159 which is considerably less than infinity. And it isn't concocted; pi is the ratio of a circle's diameter to its circumference. It's a irrational number so it cannot be describe exactly by any number system we can conceive.

Answer 4

http://www.sciam.com/print_version.cfm?articleID=0009F0CA-C523-1213-852383414B7F0147
http://www.astro.ucla.edu/~wright/cosmo_01.htm

the universe actually seems to be finite yet has no boundaries. it has no center and no edge. it seems to be something like the two-dimensional surface of a three-dimensional sphere. nothing inside or outside the sphere exists for the surface. it is space-time itself that is expanding. matter is not spreading into existing space-time. in fact, space-time is expanding faster than light-speed, and we can see those parts of the Universe regardless of that fact.

there are three causes of redshift: rapid recession of a light source, a very massive and dense light source, and the stretching of light due to the expansion of the universe. cosmic redshift is given by 1+z = exp(v/c) = e^(v/c). this is not the same as redshift due to rapid recession of a light source.

the Cosmic Microwave Background comes from a time when the Universe was much younger and smaller than it is now, but we observe it in every direction we look. we can detect no electromagnetic radiation beyond the CMB. the CMB has a redshift of 1089.