like the universe is everything, so what if there was no universe?  you can say nothing, but nothing has to exist in the universe. there wouldnt just be a black space.  there would be nothing? what the hell?  my brain hurts now.
203953
just like sleeping. Sleeping with no dreams.
144987
Qunatum uncertainty says that you can never be certain that space is empty at Planck distances, therefore on those scales there is always some matter-energy in the form of virtual photon / antiphoton pairs that suddenly come into existence and then annilihate one another.  This suggests to me that empty space cannot exist on its own unless there is something in it.  Ultimately, we can spin whatever theories we want and debate forever which ones we prefer - but unless someone can design practical experimental methods, then the arm chair physics will not resolve very much.
598607
A Grand Unified Theory of Everything cannot be explained in such fashion. I would recommend reading "Hyperspace" by Michio Kaku.
100457
Yes this is a hard topic to understand the only way I can explain it is to imagine that space "curves" onto itself. Thus is finite.\n\nThe reality is an actual infinity can not exist, its something conceptual, impossible lack understanding of what an actual infinity is, it can exist mathematically as an Ideal, but not in reality as that is physically impossible.\n\nLook at the attributes of infinity:\n\n(1) You can not add to infinity\n(2) Any part of infinity is the same as the entire "set"\n\nWhen we trace our Universe back to the big bang we end up with a singularity, this is where "Science and physics break down" it can not be really explained and we have to go to a higher source of knowledge i.e. theology.\n\nWhat I will end on is saying that one of the Attributes of the Creator is that he is infinite.\n\nI hope that helps\n\nAnhar Hussain Miah
334569
"Everything that has a beginning has to have a cause." \nWhy do you say this?  As you should know, absolute statements are frequently wrong.  Still, I can roll with this.  Okay, for the moment I'll play along and say that everything must have a beginning.\n\n"Only God is self-existing without beginning, without a cause outside Himself." \nWhat?!?!?!?  What about your statement above?  Can't you see that you totally contradict yourself?  You have just violated logic and trashed your own argument.  Sigh.  If everything needs a beginning, then so does a creator.  If you make an exception for a creator, then you could also make an exception for the universe.\n\nWhere is your evidence for either of these two statements?  Where is your evidence for a creator without beginning?  I think you are trying to avoid falling into the "Who created the creator" question, but skirting the question does not eliminate it.\n\nOccam's Razor:  which is the simpler theory?  A universe without beginning or a creator without beginning that created a universe?\n\nI hesitated answering this question because I felt that you merely asked it to find someone who agreed with you, and that you would choose that as the "best answer".  I didn't want to screw up my best answer ratio... but thought it more important to show you the flaws in your logic.\n\nGood luck in your Q&A's.
20355
I believe the universe is a 'closed' shape, meaning that there is no 'edge', however it does have a finite size.  But just to entertain your question, if we one day did reach the End of the Universe we literally would be unable to describe anything on the otherside.  Everything we know about physics, space time, the fundamental forces, the universal constants and so on only exist in this universe.  Anything 'outside' of the universe could potentially then have different laws of physics and thus would be completely beyond our comprehension.  Words would literally fail.  For more fun reading, checkout the link in the sources.
599198
If the universe is everything, then what is it expanding into?\n\nBefore we can address that question, we must first define universe.  \n\nThe word universe denotes all space and everything (matter, energy) contained within it.  The prefix uni means one.  The root verse means word, carnate message, meaningful substance, matter.  Questions regarding our universe persist today.  Does it have a beginning and end, or does it go on forever and ever?  Is it linear or curved?  If it has limits of length or curvature, then what lies beyond the Universe?  If something lies beyond the Universe, then can’t we accurately call that the Universe?\n\nSome lay people and some scientists conceive of the universe as infinite space.  Others define the universe as finite, or limited (perhaps curved), space.  Still others incorporate the elements of matter and/or energy into their definition of the universe, as opposed to the space beyond matter and energy.\n\nGiven these concepts of our universe, some scientists conclude that the “totality of space could be infinite. Shrink an infinite space by an arbitrary amount, and it is still infinite. (Scientific American March 2005).”  \n\nAs to the notion that we live in an ever expanding universe, moving away from every other universe on the fabric of space-time, some scientists are careful to point out that “\n\nAndromeda, our nearest large galactic neighbor, is actually moving toward us, not away. Such exceptions arise because Hubble's law describes only the average behavior of galaxies (Scientific American March 2005).”\n\nIn accordance with your supposition that our universe is in another universe, “it has been hypothesized by some scientists that the universe may be part of a system of many other universes, known as the multiverse (http://en.wikipedia.org/wiki/Universe).” Modern astrophysicists talk about multiple "pocket" universes that branch off from one another.  Stephen Hawking points out that parallel pocket universes can have no effect on a real observer inside a single pocket, so, according to Hawking, they are theoretical baggage that should be eliminated from cosmology, the study of the origins of the universe.\n\nSome string theories define the universe as a three-dimensional space in an invisible space having more dimensions. This is, in essence, a universe within a universe.  Our zone, a “braneworld” could periodically bounce into another parallel braneworld.  This may create what would appear as a Big Bang from one perspective or a Big Bounce of alternating expanding and contracting universe from another perspective.  Such a cataclysmic event is thought to occur 300 billion years from now, resulting in the rearranging and creation of a new universe.\n\nIf the universe is everything, then what is it expanding into?  It seems that our universe is all matter, space, and energy that we can perceive in this closed system.  However, that does not mean that there is not additional matter, space, and energy outside our universe.  In other words, there are probably other universes.  Therefore, the zone that we call our universe (or braneworld) may be moving through or expanding into other universes (or braneworlds).  In sum, all universes may be moving through a multiverse.\n \nSteve\n:-D
659685
This "nothing" is what we perceive without the laws of physics. Our universe is limited by the knowledge we have about it. Recent theories (the "M" theory) suggest that endless universes exist, and sometimes they even collide one into other. Probably, out there, beyond the boundaries of 12 billions light years, others dimensions, other plan of existence exist.
312408
This is life as we know it.  You only get one crack at life.  Doesn't really bother me at all.  What is else is out there...?  Jimmy Hoffa's body?  Only your imagination can make it into whatever you desire.  Heaven?  Reincarnation?  Trapped in another astral plane?  Nothing?  Everything and more?  Voyager?  Seifert Galaxy?  Beyond Andromeda?  Aliens?  God?  An ice cold mug of root beer bigger the known universe?  OK, I talked me into it.
3517
It does not end and its growing, before you try tackling such a question, answer the micro-level questions of the same kind.  The universe encompasses all that exists, and by default then, it is largely unknown.  We don't know where the universe ends, and all evidence points to it being endless and growing, therefore we make a conclusion based on a portion of the information actually needed.
212185
There is no boundary as such because there is "nothing" beyond the edge; but the Universe in not infinite.  Difficult to get your head around I know especially as "nothing" in this case does not mean nothing as you understand it now.  If I go on you might blow a fuse so I will stop there.\n\n[re: above - "The Milky Way" is the name of our Galaxy not our Solar system]
269785
really? there is no god? OMG... what r we talking about?
576920
The place we call 'space' is very much 'infinite'? To understand it can't be done. Logically and or by dictionary terms it means boundless, endless or very great. Their are many ways to describe the word infinite because the word holds a question of uncertainty. So people try to answer the best they can because really, deep down we don't know the true answer. And all things not labled, catargorized or can easily be explained is scary and is alien to us. The unkown is a scary place for most. Whats after infinite? How can something possibly go on and on with no end. I was once told "Their are new things that are being discovered every day because we as humans where meant to discover them, but then there are things that are so big and boundless that are mind can't even comprehend and thats because the answer lies with god and we will never know. You will drive your self crazy trying to understand the true concept of infinite. But remember this, the most intelligent scientists in the world can only answer your question with a text book answer with a scientific veiw point and still not answer your question completly.\n\nTo answer your second question. God can't be explained you have to discover him for your self and only then will you be able to discribe him. He is so unique that one word can't possibly sum him up. You would need the worlds dictionarys and pick out all the best words that are good and then create another million before you even get close. The true answer to your question lies with you in your heart. Good luck and god bless.
77343
The above answers are interesting but, modern physicists speak extensively about 'multiverses'.  So, does one universe end at the edge of another? or, do they 'co-exist' in space and time? OR??????
664232
The concept (that's what this really is) of nothing - or "no thing" is easy to understand and explain its existence. Lets examine a few things to get a grasp of this.\n\nFor example, when there is a lack of water, we say that its state of being is dry, arid, etc. Simply because there is a lack of something doesn't mean it does not exist.\n\nMy second example is that of your self. If you are not in a specific location at a specific time, and I am a witness to that event - or lack thereof - does that mean you do not exist? Surely not.\n\nFinally, the concept of "no thing" goes one step further than the examples above, however it is important to remember that the state of being no thing is exactly that - a state of being. Can something that does not even exist have a state of being (or a state of not being in this case)? It must exist to have these attributes. Simply because some thing does not have tangibility in our physical realm does not mean it does not exist. In fact, I would argue that due to all of the things I've stated here, it is more likely that the things we can not see or grasp are more likely to be real in a truer sense than the things we see, hear, touch, smell, and taste everyday. Simply because it is a concept does not mean it can not exist.
467933
There is no proof that our universe is, was or will be the only universe.  The nature of reality is that we can only study and observe what is in our universe, so we will never know because there is no way to find out.
300501
The universe is an indefinite entity.It is bounded by 'nothing' even in the strict sense of modern physics.