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Originally posted by TheReclaimer
Sometimes, I wonder: is there such a thing as a limit in space? When people think of the end of the universe, they imagine this invisible wall or barrier. But can such a thing actually exist? It almost goes against logic. When considering the universe, one must see the entire spectrum from the macro to the micro. Do you think the micro universe also goes on forever, or is there some limit to how small things can get? Can there exist a particle so tiny that nothing smaller can exist? But then, a person can ask "what is that smallest particle made of?" Even smaller parts.
Until we find a particle that holds up a sign saying "dead end", we can only assume that it goes on infinitely, in both directions. The entire known universe may be just another "particle", one so immense that from our perspective, seems to encapsulate everything. I always think of fractals and then I realize, in a fractal reality there is no such thing as macro and micro, since there is no beginning, no middle and no end.
... for the wise man looks into space and he knows there are no limited dimensions. Lao Tsu
Originally posted by swampcricket
The universe is always growing......
But where is it going
Originally posted by michaelbrux
reply to post by Lichter daraus
instead of me describing how its contained why don't you tell me what exists outside of it?
having a conversation with any of you is worthless.
you're all too busy pushing something no one is buying.
good luck next week.
Originally posted by Night Star
There is no end.
Originally posted by swampcricket
The universe is always growing......
But where is it going
Originally posted by LilDudeissocool
reply to post by swampcricket
What is expanding is space/time. What is beyond it is not created yet until something that is, such as energy and matter, moves which creates space by moving time forward. That's why the universe is expanding and why it is accelerating. It's like a steam engine with no governor that can feed itself mechanically with coal and water.
On the starlight observation question that is simply a window into past time. Light defuses but can't be destroyed so it always is until it reaches matter and changes form.
In the observable universe light travels all around from points of origins no older than 13.75, but the first visible light still existing somewhere in the universe would be from the formation of first visible light, and at what time this occurred in the history of the universe... you need GLAST's data for that www.nasa.gov...
As far as the measurement of the span of the Universe which is what I think you were touching on with the 6 billion light years and so on comment, the approximate size is, it's at least 156 billion light-years wide. www.msnbc.msn.com...edit on 9-5-2012 by LilDudeissocool because: of a nonworking link issue.
Originally posted by swampcricket
Thanks for all the input guys. I often ponder if the universe does have a big bang and expand then all of a sudden the is a big contraction back to a singularity but that still doesn't answer my mind banging question where the hell does it expand to? Lol if it contracts what does it pull in and then once again where does it bang to? Take a star 6 billion light years away we can see the light from it now from six billion years ago so we put ourselves (earth in the center. Take that star and put it in the center what if it is seeing light from stars 6 billion light years away from the other side of it etc etc I think I need a beer!