Have YOU EVER THINK  WHERE UNIVERSE ENDS .YOUR ANSWER WILL BE YES  BUT EVER THINK WHERE IS THE END OF SPACE?
363417
Simple..\n\nU know why Einstein is so-called the most genius man in the world.\nEveryone who didn't study modern physic would say. the famous equation E=mc^2 bought his fame. No Einstein is genius becoz of his work on relativity.\nOne of the postulates made by the Einstein is that gravitational force is the curvature of space-time. U probably don't realize the importance of that statement. \n\nBut here i want to stress on the word space-time. Before Einstein, every scientists treat space and time as 2 separate distinct. But Einstein is genius enough to find that space and time as single entity. \n\nthe universe is all about energy and gravitational force.\nPeople says the universe start when a dense material exploded. Thus the universe was born. Remember to treat space-time as single thing. So, when universe was born, so the space and time was expanded and run. when there is no time, there is no space. so when the universe perish, the time also disappears and so the space...\nBcoz there is no mass, lead to no gravitational force and lead to no space and time.\n\n\nSo, God is really Almighty. there is no start and there is no end to Him
1101320
What if we could bump into the end of the universe, what would be on the other side of that wall?  An infinite wall?
446086
the cosmos has an end... every star and galaxy will have an and so the universe will end someday and someday.. look on discovery science for details
1007231
Current information is insufficient to give a correct answer. Once we explore more of the universe, maybe we could have a logical answer.\nst
333652
Once you leave the Milky Way you are not outside the universe. The Milky Way Galaxy is one of many known galaxies in the universe. There are probably billions we don't know about. "Goodness knows where" is inter-galactic space.\n\nInfinity means "forever". It is not necessarily a measurable distance or time. We're not sure if the whole universe is infinite. We can't even see most of what is out there. The estimated size of the observable universe is 7.4x10^26m (that's really, really, really, really big). Beyond that we're not sure yet.
918239
where ?\nin outer space. there is room enough.\nor am I wrong ?
396914
Outer space is not nothing. Even without the presence of matter, it is teeming with quantum foam, particle-antiparticle pairs, space, and time. For all we know, spacetime may not exist outside our universe."\nAlso, the universe may not be bounded. The only way to "exit" may be to find a "fourth direction". Ie., think of a point in an unbounded plane. The only way for the point to exit its universe is to somehow find the "third direction".
1071464
Who actually said that theres an 'end' to time itself?  Theoretically, who says that time hasnt ended before, and whos time are asking about, ours or someone else's? These are factors that have to be considered throughout the course of that which is the universe. Now, some scientists claim that another "Big Bang", much like the one that some believe formed the universe in the first place, will happen again and completely wipe the board clean.  The question you should be asking yourself is this:  If 'Big Bangs' keep, well um, banging, then who says that will end?  What if it already has happened several times, yet in your lifetime, you believe that youre still forging the original trail?  The problem with this question is that we, as stupid friggin humans, are basically incapable of having any sense of time. We live our and die, if we're lucky. But we dont know if another big bang will happen tomorrow at which point everything goes back to zero, history repeats itself and none of us are the wiser. Its a lot to think about, but as a simple answer to your question which is: 'When is the end of time?", I believe that the simple answer is "never".\n\n-J.
58597
Recently, scientists are creating theories that saying there are more universes beyond our own. Until we learn to harnass the power of warpholes, black holes, etc. or send things traveling at the speed of light without damaging it, we may never know where space ends.
193032
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??????
554735
space probably does not end.  space-time may be something like the two-dimensional surface of a sphere.  it has no center and no edge.  nothing inside or outside the sphere exists for the two-dimensional surface, and nothing exists outside space-time in this model.
1084780
Milliways?\n\nAnyhoo...\n\nExcuse the geek humor.  It depends on what you mean by the end of space.  If you mean the destruction of the universe, there's a lot of theories out there.  If you mean the physical edges of the universe, there is nothing, no vacuum.  The universe is all that exists, there is nothing outside it.  It's a difficult concept to visualize sometimes.\n\nSome end-of-the-universe theories include the big crunch where the outward movement of the universe reverses itself and returns to a common origin; the opposite of the big bang.  Opposite of the big crunch is the quiet freeze, where the universe keeps expanding, planets drift so far away from each other, entropy takes control, all energy is slowly expended and the universe drifts into a quiet soft end.  Those two theories depend on the cosmological constant.\n\nThere's also a theory where many of our cosmological constants which define the laws of physics and allow for the universe to exist could change and matter simply crumbles at its most basic level (even quarks, which are base atom components, would fall apart).  Another somewhat worrying theory is that physicist working in supercolliders could set off a quantum vacuum collapses, this off course assumes that the quantum vacuum is not at is lowest stable state which is unlikely.\n\nOne of my favorite theories is the result of M-theory, otherwise known as Brane theory.  Brane theory suggests that the laws our universe is governed by a "membrane" created from supersmall (Planck length, 10^-35 meters) one-dimensional strings.  It's easiest to think of the piano, music is created but is not tangible, it is created from vibration of strings.  The way this membrane is folded creates the laws and constants that govern our universe.  There could be, literally millions of membranes and millions of universes.  The theory goes onto suggest that our universe was created from the collision of two membranes; and so too could it end that way.\n\nThere's a lot of different theories, if you're interested in end-of-the-world/end-of-the-universe theories I'd recommend you visit Exit Mundi, linked below.
514185
does the universe end?  no one knows yet.  the beginning of the universe is much better understood.\n\nhttp://en.wikipedia.org/wiki/Ultimate_fate_of_the_universe
1107409
I do not believe you could ever find the 'end' through the knowledge we have today.  This would require us to exceed the speed of light, obtain infinite energy, warp space as a blackhole does, etc.  I do believe there are infinite universes.  Our universe exists as a 'point in infinitely dimensional space.  \n\nOur universe was created from the chaos of the lawlessness of nothingness, we could have been 10 billion times larger in mass or the size or total mass of an atom.  We may be able to difine how much mass the universe has, but possibly never the size.\n\nIt would be like defining the size of a dimensionless point.
1113632
What is beyond the borders of the universe?\nIs it truly possible for the universe to go on forever? If there is an end, what’s on the other side?\n \nBefore we can address these questions, we must first define universe.  The word universe denotes all space and everything (matter, energy) contained within it.  The prefix uni means one.  The root verse means word, turn, or whole.  Thus our universe has traditionally been thought to be the one whole of all substance or 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 “Andromeda, 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\nBeyond the borders of the universe, there are other universes moving through a multiverse.  While scientists do not commonly believe that our universe goes on for an unlimited distance, despite its present expansion, they allow for the possibility that the multiverse may go on forever.  If there is an end to our universe, what’s on the other side is called the multiverse.  If there is an end to the multiverse, another term may need to be coined to describe what lay people commonly refer to as infinite space.\n\nSteve\n:-D
136202
By "is outer space infinite?" I assume you mean "is the universe infinite?" The answer to this question is NO. The universe and outer space is NOT infinite.\n\nOur current understanding on the origin of the universe tells us that the universe was created in a Big Bang, and that the universe has been expanding ever since (for about 15 billion years). Since light travels 186,000 miles per second, a light-year is about 6 trillion miles or 6 x 10^12.  So 15 billion light years is about 9 x 10^22 miles. This makes the universe very large indeed, but still NOT inifinite.\n\nBTW, this is just the size of our universe. There maybe other universes as other people have indicated, but there is no point talking about them, because we don't know for sure they exist but we are VERY sure that our universe exists.
906367
There is nothing called the end of the Universe. There are three possibilities of the shape of the Universe.\n\nFirst, the Universe might have what we call positive curvature like a sphere. In this case, the Universe is called "closed" and it has a finite size but without a boundary, just like a baloon. In a closed Universe, you could, in principle, fly a spaceship far enough in one direction and get back to where you started from.\n\nThe second possibility is that the Universe is flat. This kind of Universe can be imagined by cutting out a piece of a baloon material and stretching it with your hands. The surface of the material is flat and not curved. You can expand and contract it by tugging on either end. Flat Universes are infinite in extent and have no boundaries.\n\nFinally, the Universe might be "open" or have negative curvature. Such Universes are also infinite in spatial extent and have no boundaries.\n\nThus whatever be the shape of the Universe, there is nothing called a boundary and hence nothing called the edge or end of the Universe.