can somebody tell me the depth of the universe?
545233
870436 billion light years. If u disagree, go and measure it urself
880652
the universe WAS a singularity (everything packed into an tiny tiny tiny space) before the big bang. So, i guess, technically, you  can go see the consequence of a singularity by opening your eyes. but see one as a singularity, i have no idea, sorry.
10099
Just supose that the universe end in some point, that has a boundary. What would be outside? Nothing? And... what is between Mars and the Earth? Also nothing. The universe is... "the nothing", and never ends. Anyway, and suposing that you forget the relativity theory and you want to know where is the star/planet/thing that is farest from the "centre", you can say that the radius of the universe is less or equal to the speed of light times the age of the univers.
1046416
Let's assume that by "known Universe" we're talking about the observable Universe. That is a sphere 14.5 billion light-years in radius. \n\nOne light-year is 9.46 x 10^12 km or 9.46 x 10^18 mm. So 14.5 billion light years is 1.37 x 10^29 mm, which is the radius of the Observable Universe. Applying the formula for the volume of a sphere (v = 4/3 pi r^3), we find that the Observable Universe has a volume of:\n\n1.08 x 10^88 cubic millimeters. Which is the number of grains of sand you'd need.
332409
Our universe has 4 dimensions: up/down, back/forth, left/right, and time. According to well established theoretical physics, it is likely that our universe has more than 4 dimensions and could have as many as 11 (according to String Theory). As to why we can't see them, the leading explanation is that, at the beginning of the universe, all dimensions were curled up, but that at the time of the "big bang", 3 of the spacial dimensions and time unfurled, creating the universe we know to day.  The other 7 dimensions currently remain curled up in space where we cannot see them.
921651
I don't think so. Does earth have an end? Nope, not in 2D. So universe may not have an end in 3D, but can be multidimensional
570269
at the present time we define the universe by four dimensions, length, width, height, and time.\n\nhttp://en.wikipedia.org/wiki/Spacetime
561415
physically the universe has no limits . but still it is expanding with enormous speed . you can go to this link : http://en.wikipedia.org/wiki/Space and find out whatever you need about space . good luck
747259
To find out whether there is an end or an edge to the universe we first need to know what is the shape of the universe.\n\nMost astronomers would like to know the shape of the universe too! There are three general possibilities. First, like your balloon, the universe might have what we call positive curvature, like a sphere. In this case, which we call a "closed" universe, the universe would be finite in size but without a boundary, just like the balloon. In a closed universe, you could, in principle, fly a spaceship far enough in one direction and get back to where you started from. Closed universes are also closed in time: they eventually stop expanding, then contract in a "Big Crunch." All the geometry that is true on a sphere is also true in a closed unvierse: parallel lines eventually converge (e.g. longitude lines are parallel at the equator, but converge at the poles), large triangles have more than 180 degrees, etc.\n\nThe second possibility is that the universe is flat. This kind of universe you can imagine by cutting out a piece of your baloon material and stretching it with your hands. The surface of the material is flat, not curved, but you can expand and contract it by tugging on either end. Flat universes are infinite in spatial extent, and have no boundaries. Parallel lines are always parallel and triangles always have 180 degrees. Flat universes expand forever, but the expansion rate approaches zero.\n\nFinally, the universe might be "open," or have negative curvature. Such universes are sort of saddle-shaped. They are also infinite and unbounded. Parellel lines eventually diverge, and triangles have less than 180 degrees. Open universes expand forever, with the expansion rate never approaching zero.\n\nWhat determines the shape of the universe is its density (and the Cosmological Constant, a sort of anti-gravity force allowed by General Relativity). It is difficult to figure out what the density of the universe actually is, but it seems that the universe is probably flat.
92471
As large as you can imagine, and possibly larger than that! It depends what you want to call The Universe- is it as long as the distance to the farthest object known to us? Or are there other objects beyond that? If you measure to the farthest visible object, the universe is approximately 12-15 billion light-years away, in all directions.
185861
Universe in general is the area of everything including earth, solar systems, nebulas, black holes, galaxies etc are contained within. Everything that is observable to us(human) are so far within this universe. So maybe there are more but to human.. there is only 1.
326353
Some physicists estimate as many as 12 dimensions. \nAbsolutely there's a spiritual dimension that we can not see as long as we dwell in the flesh.
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.
128617
length, width, depth. Time and space
659476
"...What are the dimensions (length, width, and height or thickness) of the physical universe (in light years)?..."\nThe universe can't be measured in terms of length, width, and height. Such parameters require some reference point from which measurements can be made, along with some distant boundary where the measurement would end. You simply can't do that with the universe because the universe is isotropic, meaning it's the same in all directions from any observing point. From Earth we can look outward in any direction and 'see' about 13.7-billion light years. From Earth that represents a boundary. Here comes the tricky part: if some alien in a galaxy 13.7-billion light years away from Earth looked outward in all directions (including back towards Earth) they'd 'see' a universe that appeared to be 13.7-billion light years in scope. In other words, the universe has no boundary. To have one it would have to be inside some "thing" else, and there's absolutely no evidence that such is the case.\n\nTo confuse the issue even more, if we had the ultimate telescope with limitless viewing power we still will never be able to see into the universe beyond a certain range. That's because at almost the same instant of the Big Bang the universe briefly expanded faster than light (this doesn't violate relativity because it was the space of the universe that did the expanding). In our 'normal' universe the speed of light is the speed limit which prevents us from ever seeing any of that inflation because it's moving away faster than the speed of light.\n-----------------------------------------------------------\n"...I've read that the universe is thought to be "saddle shaped..."\nMore recent observations point more towards the universe being geometrically "flat." This simply means that the universe appears to be infinite, that its space will expand forever while cooling more and more over the eons.\n------------------------------------------------------------\n"...What does it mean for example, to say that the universe is expanding at a rate of 70 kilometers per second per (x number of light years)?..."\nYou've described the so-called Hubble Constant. (70 km/sec/Mpc) It means if galaxy 'A' is 1 Mpc (1-million ly) away from us it's recessional velocity will be 70 km/sec. If galaxy 'B' is 2 Mpc away then it's velocity will be 140 km/sec It's important to keep in mind though that it's space that's expanding like that, not the galaxies moving THROUGH space; they just get carried along.\n------------------------------------------------------------\n"...I was not able to find a rate of acceleration of expansion..."\nI've been looking for a figure too. So far the only thing I've come up with is -3.15^36 /sec/sec  Darned if I know what the units of measurement are though. Maybe someone else on Yahoo can help us out with that.
269829
Sorry dude, but I only have about 67% of the universe in my pocket. The rest I have no explanation for it's location.
246225
Currently, the accepted view is that the universe is approximately 78 billion light-years in size. A light-year is the distance light travels in one year (a large number since light travels about 186,000 miles each second). To determine this, astronomers used the WMAP project. See the links to determine how this was accomplished, but only if you don't mind being confused (it is quite lengthy and quite confusing - even for an astronomer such as myself!).