where is the boundary of universe and how far away is that from the earth ?
596706
scientist believe the universe is infinite which means no boundries, no edges- going on forever
710329
I hate to be the philosopher but that is why the question still reamins. No one can accuratly tell what lies beyond the boundries of the universe. Is there another? Is it just white noise? I believe that space is infinite and our "universe" could well be a part of a cluster of "multiverses". i was once told that the universe is expanding in the same way that a balloon is blown up. So what lies beyond our universe? I say space, space, and more space! \n\nIf our universe began with the "big bang" then that would mean that at some point the universe had collapsed upon itself, leaving empty space.
95075
Let's see... \nIf you accept the Nemesis theory, the outer "boundary" is a good 2.5 light years out from the center,\nthat makes the circumference around 20 ly,\nlight travels roughly 386000 miles per second,\n31536000 seconds per year,\nmaking 1 ly about 12172896000000 miles,\nfor a total circumference of 243457920000000 miles.\n\nAnything else?
214423
The universe has no end, just as the surface of a sphere has no end. In terms of the surface you can't describe its end, only in terms of a higher dimensional geometry. In that sense, "beyond" is meaningless since it is a term to relate to the same dimension as the universe. It's like "beyond the end of the world" for the surface of Earth -  there is no end, and at some time you might return to where you started from.
25872
The distance around the Earth, also known as its "circumference", is 24,906 miles = 1,578,044,159.9999997 inches.
365555
I assume you mean how far away is the horizon, which isn't quite what the wording of your question really asks.\n\nAnyway, it is a simple geometry question. Construct a triangle. One point is the center of the Earth, one point is at your eye and one point is at your horizon. The horizon is that place where your line of sight is tangent to the curved surface of the earth, which means that the angle between the line from your eye to the horizon and the line from the center of the Earth to the same point on the horizon is 90 degrees. So you have a right triangle. The hypotenuse is the line from your eye to the center of the Earth and it's length is the radius of the Earth plus your height. That length, squared, is the sum of the squares of the other two sides. One of those sides is the radius of the Earth and the other is the unknown distance to the horizon you are trying to find. Just do the algebra to solve for the third side, which is the distance to the horizon. I think it is about 20 kilometers for the average person.
24559
The distance that the moon is from the earth depends on the location of the moon during the lunar calendar.\n\nWhen it is closest to the earth, the moon is 363,300 km from the earth (roughly 225,744.154 miles, 1.19192913 × 109 feet)\nWhen the moon is the farthest away, it is 405,500 km from the earth (roughly 251,966.018 miles, 1.33038058 × 10^9 feet)\nOn average, the distance from the earth to the moon is 384,400 km (roughly 238,855.086 miles, 1.26115486 × 10^9 feet)\n\nMeasurements reveal that the Moon's distance to the Earth increases by 38 mm per year!
78436
The diameter of the earth at the equator is 7,926.41 miles
1033786
this is actually a common misconception about the big bang.  the universe may be something like the two dimensional surface of a sphere.  it is finite yet has no boundary and no center.  nothing exists "outside" the universe.  to quote a dead writer, "there is no there, there".\n\nread this:\nhttp://www.sciam.com/print_version.cfm?articleID=0009F0CA-C523-1213-852383414B7F0147
314231
The boundry of the universe lies at the outer limit of expansion of the space-time continuum.  It's a popular misconception that the universe is expanding into space.  The truth is that space-time itself is expanding, carrying all the matter and energy in our universe along with it. I should also mention that the 4th dimension, mentioned in other answers is, in fact, time. It is already included in the whole time-space continuum. As for what lies "outside" the universe, the question is in one respect meaningless.  Since it is space and time that is expanding, there is no "outside" in any meaningful sense of the word.  All the space that exists does so within the bounds of our universe.  I know what you are trying to say is"What is our universe expanding into?" but again, that question cannot be answered meaningfully.  We can't even set up mathematical models that are more than speculation because the laws of physics as we understand them are applicable only within the framework of the T.S.Continuum they exist in. Some have speculated that there may be other universes that lie "outside" our own, and there is a body of mathematical models to support this idea, but the plain truth is, no one knows for sure. If such universes exist, they will probably function under differing "laws" than our own, and will be difficult, if not impossible to comprehend. As for what lies "between" universes-as it is "something"(for lack of a better term) that falls completely outside of any human experience or frame of reference, there are no words to describe "it."  You may as well call it the Tao- that's about as close to describing it as we will ever likely get.
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.
334137
the universe is finite yet has no boundaries. it may be something like the two dimensional surface of a sphere.  nothing inside or outside the sphere exists for the two dimensional surface.  nothing exists outside the universe in this model.
858571
G'day Dragon Warrior,\n\nThank you for your question.\n\nThe diameter of the earth in miles is 7,296 miles at the equator and 7,900 at the poles.\n\nI have attached sources for your reference.\n\nRegards
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.
312204
"If the earth were a hundredth of an inch closer to the sun, we would burn to death and if it were one hundredth farther from the sun, we would freeze to death"\n\nHA HA HA HA HA HA LOL ROTFL\n\nThat's what you get for reading fairy tale books instead of science books... actually the earth is at 152 million km from the sun at aphelion and 148 million at perihelion (6 million km closer) ... get a clue!!
720625
the boundaries of the universe are a snow-globe. we exist in the snow globe of something much larger then ourselves. the stars are just the pieces of glitter that float when you shake it and then fall. the billions of years in our universe is just a few seconds in the life of someone who shook it up and now watches the snow fall.
384258
About 92.9 million miles on average. This is also 147 million kilometers. The actual amount varies over time because the earth's orbit isn't a perfect circle. In astronomical terms, this is *very* close. If you made a scale model with the distance from the earth to the sun as 1 inch, then the distance to the nearest star (other than the sun) would be 4.3 *miles*.