I don't know that the actualy universe is expanding. I think maybe our perspective universe is expanding. It's impossible to guess what is out there beyond the unknown. Perhaps more unknown.
2006-08-30 02:12:17
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answer #1
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answered by Seraphim 3
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We know that the universe is expanding because scientific measurements that have been taken prove that it is. Some believe that it is because of the "Big Bang" and some do not.
This is a difficult question to answer. There are things about this universe that we cannot understand. We have finite minds. Our brains have limits. For example, time is something that exists within the dimension that we live in. There are "places" where time does not exist. That is almost impossible for us to unerstand because we live in a universe in which time exist. It is very difficult for us to accept that outside of our universe something else could exist. Or even that nothing exists.
Believing that absolutely NOTHINGNESS could actually exist is almost as difficult as understanding infinity.
Infinity: Something that has no start and no end. Infinity is a number so large that there is no number to describe it. Our brains just can't wrap arround that 100%.
So the answer to your question is that we really don't know what the universe is expanding into. We live in a universe that is bound by 4 dimensions - height, width, depth, and time. Beyond that there are endless possibilities.
2006-08-30 09:17:30
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answer #2
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answered by Mandragon 3
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I ran across an article that the universe is expanding but it is also slowing down. Some think that it will eventually stop expanding and start to collapse, causing a the Big Crunch.
The Big Crunch will be followed by a Big Bang, and we will go through this all over again.
2006-08-30 11:23:34
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answer #3
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answered by Anonymous
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That's a good question, but unfortunately it's completely unanswerable because there is no way to observe what is beyond the Universe.
You also have to be careful using terms like 'outside the Universe' becuase that implies that space-time continues past the edge of the Universe. It does not; spacetime is a property of the Universe and it came into being *after* the Big Bang..... whatever THAT means. (How do you describe events before the beginning of time? What does 'before' mean when there is no time?)
The fallacy tripping you up is one you frequently encounter when considering extremes in physics: very high speeds, very tiny sizes, and locations outside the Universe for example. Clearly, our notions of 'common sense', which are grounded in the macroscopic world (i.e. neither too large, nor too small, nor too energetic, and in 'normal' space) simply do not apply and the concepts must be abandoned to understand the conditions in extremis.
This is an issue that has plagued physics since the very beginning. Aristotle claimed that empirical, experimental evidence was unnecessary because 'gut feeling' told you the true nature of reality. Aristotle was wrong, but he was so infuential that he froze scientific inquiry in its tracks for two thousand years.
2006-08-30 11:03:21
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answer #4
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answered by poorcocoboiboi 6
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this is the question that makes sane men crazy and crazy men frightened. the same goes for sane and crazy women, respectively
=edit=
whoops, just saw the part about "genuine answers only". umm, ok. here's what i think. outside the universe is nothing. not nothing in the absolute sense, just something that would be nothing (in the absolute sense) if it were to be in the universe. i have no idea what it is, but then nobody else does either so i might hazard a guess that it's the Higgs field everybody is looking for. or something like that. maybe it's "dark energy" (i.e. responsible for the expansion of the universe - the nothing is "sucking" the universe outwards, like if you put an inflated balloon in a vacuum chamber)
ok, there we have it. that was a little longer than expected, but seriously, pages could be writen on this topic without getting anywhere......
2006-08-30 09:15:44
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answer #5
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answered by visionary 4
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The universe is expanding into the future. If you think of the universe as a balloon with all of space on the balloon's surface, the the air inside the balloon represents the past and the air yet to enter the balloon represents the future.
As time passes from future into the past, the universe expands.
This analogy is a three dimensional representation of four dimensional space-time, but it is the best I can think of on the spot.
2006-08-30 09:30:29
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answer #6
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answered by sparc77 7
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Clearly this is not answerable. Even vacuum is something and outside the universe is what the universe is expanding into. Vacuum is something. Outside the universe is something else.
2006-08-30 09:15:35
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answer #7
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answered by campojoe 4
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A light year is 5,878,482,164,161(trillion) miles away. Our galaxy is 100,000 light years from one end to another. So if you times 6 trillion miles by 100,000 times thats how many miles our galaxy is across. There are thought to be over 500 billion galaxies in the universe. Its pretty obvious that we will never know very much about the entire universe.
2006-08-30 22:51:37
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answer #8
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answered by Anonymous
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Welcome to the party, I have asked this question to quite a few people. Here's what i heard.
"Universe created by bigbang" is like a baloon expanding into "nothingness". This baloon's inside cavities are vacuum. [note vacuum is not same as nothingness] we can see only whats inside this baloon. Even if there is another universe caused by another bigbang just next to our baloon, we will not see it as even light cannot travel thru' this "nothingness" that separtes universes.
If this is hard to visualize, just replace "nothingness" with "iron",
2006-08-30 09:34:59
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answer #9
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answered by Infinity 2
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Space is created as it expands.
2006-08-30 09:19:38
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answer #10
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answered by ag_iitkgp 7
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