Does space have a boundary

Answer 1

As far as I know, from our perspective of space, there is no known limits, though there are limits to our perspective. You see, it would take generations of our species to reach the nearest solar system to our own, and there are billions on billions of solar systems within our own galaxy, plus there are an unknown number of galaxies. ++++Lamino++++ This is my take: Nothing suggests the existace of any ultimate limit but remember the absence of evidence is not an evidence for absency.From our point of view the universe has only one apparent limit that we come across which is visibility and is highly attributed to light travelled time, this means that the limit only exists in time.Using the same arguerment one could ask : isn't space also limited in time? the most noble answer would be to say I don't know but given the fact that the universe is expanding, I certainly think there should be a limit but not physical but in time meaning that space should go forever.Forever? think again, as for now it might seem as if we will cruise forever but gravity remains a threat so as to say as years progress gravity might be strong enough or the univrse's accerleration be weak enough to counter-acted by gravity.

2. We thinks that space have no limitation but we don't see through eye of ant if we are in the size of an ant we thinks that all the universe are land there is noting only the land. but we know there is not only land there is space water etc. so we also don't know the limitation of space. we cant say that space is ultimate it had no limits this is truly wrong to say that.

Answer 2

I'm not sure that there is one definitive answer. Some theorists might say that space is finite and unbounded (no boundaries). This is roughly like the idea that the surface of a globe is finite and unbounded. You can just keep going and going, and you don't come to the "edge".

This is not entirely accurate for several reasons. It is true that space has been viewed as flat, spherical, or saddle shaped in keeping with gravity as curved space-time. Both that flat and saddle would result in walled in space at the the edge of the manifold. However there are more reasons than merely gravity to consider space to be "Finite Yet Unbounded" but what does this mean precisely? No One Really Knows. Yet it is entirely true that you could not in any rational way come to a boundary in space; like a wall with a sign reading "Please turn back now because you run out of space." So let's think together for moment. An Infinite Euclidean Manifold will also not do since it would have an inaccessible, fuzzy boundary. What we need is space that is the same everywhere with no boundary. If you try to twist space to find the manifold you will soon discover that you would have to turn a sphere inside-out with intersecting of its surface. The only way to do it is to make time to be the radius and space its surface like this:

"Space Is Finite But Unbounded"

This is a Spherical Knot Manifold

(x, y, z) = τ(θ, φ, ψ, t)(θ, φ, ψ) = (τ(θ, φ, ψ, t)θ, τ(θ, φ, ψ, t)φ, (θ, φ, ψ, t)ψ)

The radius: τ(θ, φ, ψ, t) = ∫ v dt is derived from time, and θ, φ, ψ, angles measured in radians so that each term is like S = rθ part of a circumference of a circle (when the angle is θ = 2π radians you have a whole circle).

It's simple because of The Heisenberg Uncertainty Principle

Δp Δx ≥ ħ /2 or ΔE Δt ≥ ħ /2

The Nothing Universe -------> Space ---------> Matter ; End of story "Complete Unified Theory of Everything".

Now everything makes sense. Space is curved hyperperpendicularly to time much like a magnetic field. Lines are curved around a charge perpendicular to the electric field lines. In this model one could even begin to see further identity/unity into time and space. At The Point Universe Stage the universe would be in a state of Complete Destructive Interference that would be The Nothing Universe. This is possible owing to the unique geometry of a Spherical Knot Manifold since it has only interior points, no exterior points nor boundary points so it would be the opposite of points in space which have no interior points.

Further it is quite reasonable to think that there were several big bangs until a stable universe formed; one with the right mass not to collapse as in a big crunch. Any harmonic oscillation would have to be a random Quantum Harmonic Oscillation. But it is quantumly random and would come to rest in the form of a Stable Universe.

One further insight on this is:

The basic outline in function notation is β:Ø ----> U where Ø = { }.

Everything exists with "ignition (1)" including all math since Nothing is Nothing: Ø = { } ≠ {math} . Therefore the greatest unified theory is at the heart of the singularity. So the payoff is bigger than you could ever imagine.

Answer2:

Space is a finite Quaternion Space one real dimension r and

three vector dimensions [r, Ix + Jy + Kz]. Considering energy as the essence of the universe, W = -mv2 + cmV, a Quaternion energy, space is finite or bounded if the derivative of W is zero. The derivative is zero when speed of velocity v, is equal to the speed of light c, this occurs when v2 = c2=GM/r and this is the minimum size of the universe. The maximum size is set by the redshift v/c = cos(V). The redshift is the balance point between the centripetal gravitational force vp/r and the centrifugal force cp/r cos(V). The Continuity Condition is vp/r = cp/rcos(V). The Energy of the Universe approaches zero as the Universe approaches infinite size, thus the Universe does not reach infinite. The velocity slows down as the universe gets larger. The larger the Universe the slower the velocity. The Big bang is the Big Bust. The Universe is like a atom,in the excited atom the electrons move slower in larger orbit, then release the energy and move faster in the smaller orbit. the smaller orbits have the faster speed h=mvw = pw.

Answer 3

space never ends because space is an object people would call nothing. However, it is an extremely interesting matter. Because, it just seems impossible to go on forever right? But how would it end? With a big black hole? Whats after the black hole?

Answer 4

ANSWER:The answer is no. Space as far as we can comprehend by our minds, even though we can't even to begin to comprehend its size, is infinite in any direction. Even if we travelled at our fastest speed that we can accomplish, or 35000 mph as the spaceship voyager, it would take 35000 years to just leave our own galaxy. It makes one feel small doesn't it? AnswerThe answer is Yes. The Universe began from an infinitesimally small object (not a zero-volume geometric point). Probably, the object had a radius no greater than the Planck Length. After the big bang it started expanding. The Universe is huge beyond comprehension but it is finite. It continues to expand, so the "boundary" keeps extending. It's sort of like a balloon continually expanding. AnswerThe answer is no, if you imagine that the 'boundary' is something that you could actually bump up against if you were far enough out. You could never (even if light speed were not a limit) reach a place in the universe where you could say "...another ten kilometers and we can't go any farther-- we're at the boundary; we'll ...hit.. something...". Many, many different theories and models have been pondered over the centuries, and newer theories (string and membrane theories) may shed light on this question over time. The universe may indeed be finite, but it is not impossible that it is also unbounded. Think of a globe, like earth. You can theoretically start traveling on its surface and never stop-- you can even go in a 'straight' line and never come to the end of the earth. The surface of the earth is finite and unbounded. Some theorize that space is finite and unbounded, but in a three-dimensional sense, not the curved two-dimensional surface of earth. It's probably true that the universe (and space itself) are expanding, but the shapes involved are much stranger than we will ever experience on a practical level. AnswerThe boundary is expanding so fast that however fast you travel, you will never reach the end and go "bang" against it

Answer 5

Space is technically impossible because if there is an end then at the end there must be nothingness, but... there has to be an end to that nothingness so technically nothing and everything is possible.

________________

There is no end 'point', or edge to space. This remains the case even if the models of space as finite and unbounded are true. Current models hold that space is in fact expanding.

well.......... i think there is a end point in space because the space agencies and many explorers say that the space is contracting or expanding. But if there isn't any end point then how the space contracts and expands.

eg: if there is a line segment then it can be said to expand only if it has a end point. whereas if its a line <--------------------> which goes to a infinite length to both the sides, then how it can contract or expand. if space doesn't have end point how its possible to expand from its original length.

please reply if you understand my question.

Answer 6

Ok, no one knows that. If it does have an end, then there HAS to be somthing outside space. it just cant be a infinity wall going infinty out of space. if there is an infinity space out here, then that is just it. space is EVERYTHING. there is no middle of space, there is nothing.

Answer 7

When approaching the concept of finite or infinite, our dimensional reality in existence of SpaceTime

defines the realization of these concepts. As there are proposed dimensions of Space and Time, to consider Space alone (in and of itself) is to predicate it as infinite and unbounded; for it is the dimension of Time which allows for the bounding of Space.

While there are mathematical considerations for spacial dimensions; i.e.

point, line, area, volume, these are extracted abstractions of how Space interacts with Time. It would be more prudent to consider the limitations of SpaceTime

for existence, then it would be to consider the non-existent

nature of Space and

Time separately.

Therefore the consideration of 'outer space' is only bounded by its degree of dimensional covergence in existence. In this sense it is finite within our SpaceTime continuum as 'outer space' is bounded within the confines of Space and Time. However it is the degree of dimensional convergence in the evolution of existence that lends itself to an infinite consideration; for as the cosmography of the universe changes, so are the evolving SpaceTime events boundless and unmeasureable. That is to say while there may be a set amount of matter and energy based on the onset of the conjecture of the Big Bang, then existence ofour universe'sdimensional reality is everchanging.

Answer 8

Recently there have been research that have led physicists to believe that the universe is ‘flat’ and infinite. Space has NO beginning and NO end, it just keeps going on and on.
If you could find the center of the universe, you could figure out where it begins and ends as in knowing the center of a square or a circle.
This center will allow you to find where the shape begins and ends.
Where is the center of the universe? It seems that it is everywhere.
If you think of the expansion of a balloon, we are living on the surface of the balloon and not inside it.
This is called the cosmological principle.

Answer 9

Nobody knows for certain, but most theories predict the universe is finite but unbounded, the same way the surface of a sphere is finite but doesn't have any edges.

Answer 10

Unknown. If it does, the 'end' is too far away for us to have detected it yet.