Is there a border to the Universe? If yes, then what do you think is outside of the Universal sphere?
962950
This sort of question generates the highest percentage of false and meaningless responses of any other I know of in A&S forum. Here's the real poop. According to the BB model of the universe, the universe is expanding, but there is no boundary beyond which there is only empty space into which stars and galaxies are expanding into. This is a common misinterpretation due to a widespread inability to grasp the concept of curved space. On a large scale, every can consistently be presumed to be pretty much the same as it is in our neighborhood, although any conclusions about what lies beyond the observable universe are impossible. However, the volume of the universe may be either finite or infinite. This is simply not known. In General Relativity, finite *and* unbounded is not a contradiction.
235823
I would say that there is no edge. The matter in our solar system is constantly being pulled and shifted by gravity fluxes, and if you were to drift further out you would run into another solar system similar in design to ours, just varying in scale. Because as humans we can only fully understand information that has a start and finish does not mean that there are borders to all things.
424938
The 3d space of the universe has been theorized as the 3 dimensional surface of a 4 dimensional sphere.  An analogy is our planet, where we live on the 2-dimensional surface of a 3-dimensional sphere.  When you travel on the surface of the earth, there is no border or edge to fall off or cross into another dimension.  In the same way, the 3-d space of the universe has no border or edge.  If you travel far enough in a "straight" line you will end up right where you started.\n\nThis means if the universe is expanding then there still is no receding border.
1082539
Drunk again?? No problem. The Universe is expanding outward at about the speed of light and the "edge" that you refer to is the actual outer boundary of our Ubiverse as it contines to expand.  Outside of our Universe, or the absolutely empty vacuum that the Universe is expanding into has no light to shine into our Universe.  It is a totally dark, empty, absolute zero cold, infinite vacuum.
1094356
It means that we can measure the size of the universe, but if you tried to approach an "edge" of the universe, all you would do would be to extend it. Wherever you go, the universe goes with you, so it is unbounded. You cannot go "outside" the universe.
23168
In an extention of the big bang theory, the size of the spots in the microwave background radiation can indicate the geometry of the universe. Recent (2001) measurements confirm that the universe is "flat" (for an explanation of shapes, see source link). There is a 2% margin of error in this measurement.\n\nAs for what is beyond space, I would say the question isn't possible to answer, as most people define "space" to mean "Everything there is". What is outside of "everything"? Nothing, it would seem.
1067957
No matter how many 'experts' around here claim that there are alternate universes or other dimensions or a brick wall, nobody--repeat NOBODY--really knows. Tons of theories, but not one single shred of evidence to support any of them.\n\nScientific research has repeatedly indicated that our universe is infinite in scope, and that it will expand forever although its contents (mass and energy) will very, very gradually fade away to nothing.\n\nBefore our universe began, and right now, there's probably nothing else but an absolute and infinite void totally without energy, mass, spacetime, dimensions or anything else.
995272
Science nor anyone else can answer your question! As far as science can determine, our universe (space) is not contained within any 'thing' else. If anyone tries to tell you otherwise, they're just blowin' smoke.
820808
The concept of "beyond space" is flawed; space-time has no beyond for there to be anything in at all. Our limited perception of the stuff around us in three dimensions leads us to imagine the universe or even all of space as some giant sphere or disc of matter floating in space, but really, space and time being the same thing mean that our universe and all within it is everything we can perceive, full stop. Ergo, there is no inside to be outside of. \n\neither that or its turtles all the way down :-)
215635
The thing is ... a parrallel universe may exist. We cannot prove it one way or another ......YET! :) How do we know that another universe and our universe and many other universes .... do not exist in a metaverse? And if so .... maybe something like distance etc. exists in that metaverse ... which imparts some of it's qualities to our own universe and indeed to any other universe within that metaverse. Hence ..... we may not even have a void outside our universe at all.
160807
Yes they are there.  Apparently when the membrane like structure of different universes collide, they create new universes.  Look up string theory.
183513
There is disagreement over whether the universe is indeed finite or infinite in spatial extent and volume.\n\nHowever, the observable universe, consisting of all locations that could have affected us since the Big Bang given the finite speed of light, is certainly finite. The edge of the cosmic light horizon is 13.7 billion light years (4.19 Gpc) distant. The present distance (comoving distance) to the edge of the observable universe is larger, due to the ever increasing rate at which the universe has been expanding; it is estimated to be about 78 billion light years (7.8 × 1010 light years, or 7.4 × 1026 m). This would make the comoving volume, of the known universe, equal to 1.9 × 1033 cubic light years (assuming this region is perfectly spherical). The observable universe contains about 7 × 1022 stars, organized in about 100 billion galaxies, which themselves form clusters and superclusters. The number of galaxies may be even larger, based on the Hubble Deep Field observed with the Hubble Space Telescope. The Hubble Space Telescope discovered galaxies such as Abell 1835 IR1916, which are over 13 billion light years from Earth.\n\nBoth popular and professional research articles in cosmology often use the term "universe" when they really mean "observable universe". This is because unobservable physical phenomena are scientifically irrelevant; that is, they cannot affect any events that we can perceive. See also Causality (physics).
1103661
yups thats something even i was wondering for quite some time, but then i thought like on earth , its so big seems to be endless\n\nbut then the end you think has a wall and even a wall has another side to it, there surelyis  something on the other side\n\nso for sure we never wou;ld be able to describe it but surely the universe the galaxy is endless\n\nso keep your thinking hat on and just start this journey of imagination of what all could be there.....................a sun,,,,,,,,,,ocean,.,...........aliens with PS1001..........................or an church for an alein god.................
412853
First off you have a real good question.  As a matter of fact I used to think like this during my high school years.  \n\nInfinity in cosmology\nAn intriguing question is whether actual infinity exists in our physical universe: Are there infinitely many stars? Does the universe have infinite volume? Does space "go on forever"? This is an important open question of cosmology. Note that the question of being infinite is logically separate from the question of having boundaries. The two-dimensional surface of the Earth, for example, is finite, yet has no edge. By walking/sailing/driving straight long enough, you'll return to the exact spot you started from. The universe, at least in principle, might have a similar topology; if you fly your space ship straight ahead long enough, perhaps you would eventually revisit your starting point.\n\nIf the universe is indeed ever expanding as science suggests then you could never get back to your starting point even on an infinite time scale.
436621
yeah, i guess it could wrack almost anyone's brain.  spacetime is not infinite.  it is finite yet has no edge.  it may be something like the two dimensional surface of a sphere.  nothing inside or outside the sphere exists for the surface.  nothing exists outside the universe or before the universe.  i have something else for you to think about.  the universe is 13.7 billion years old, yet we can observe parts of the universe that are about 46 billion lightyears away.\n\nhttp://en.wikipedia.org/wiki/Big_bang\nhttp://map.gsfc.nasa.gov/m_uni.html\nhttp://www.sciam.com/print_version.cfm?articleID=0009F0CA-C523-1213-852383414B7F0147
983642
Actually, they know it isn't infinite.\n\n\nThe findings are mostly thanks to hubbles big idea and discovery, but they can now confirm that indeed the visible universe is finite thanks to WMAP.\n\n\n\nAs for the possiblity of space outside of the visible universe...we have no idea.
11829
On one theory, the space of the Universe (as well as its contents) is what's expanding. That theory says the total amount of space is finite, and that finite quantity just gets bigger every second.  What, you might then ask, is outside of space?  There's no outside!  It's like asking, "What's north of the North Pole?"