Is there only one universe?

Question

Is there only one universe or there are hundreds and thousands and millions of universe just like we have a lot of stars in each galaxy and a lot of galaxies in a universe?

Does the universe has a boundary? What is beyond the boundary?

Answer 1

We would have to overcome space and time to actually observe the edge of the universe. Even with suspended animation or like technologies, I don't believe we would live long enough to make any observations that far out. Breeding during the trip? Not likely.

The Big Bang theory of the creation of the universe was updated 'big time' by astronomers only a couple years ago. A number of powerful astro-telescopes around the world were turned to the skies during a few months time. They specifically were trying to measure the speed at which objects in the universe were moving away from the centre of the Big Bang. They found something they weren't looking for ...and what they found didn't coincide with Einstein's theories of relativity nor quantum physics nor the unified field theory. They changed our understanding of the universe!

To make a very long story short; objects were thought to be exploding away from the centre of the Big Bang, slowly losing speed, then collapsing back to the centre of the Bang again. Repeat for eternity. Wrong! All the telescopes found objects in space to be moving away from the centre of the Bang (as expected); but these objects were not slowing down. They found that objects are hurling outwards from the Big Bang's centre, and accelerating ...with impunity, not slowing down.

We and all objects in space are speeding and ever so slowly accelerating through space in a perfectly straight line never to return ...towards what? Sounds scarily. Your guess is as good as mine. We may be exploding into another universe which is exploding towards us. Hold on!!!!!!!!!

There may also be an infinate-like space and time dimension that encompasses all the universes. How large do ya figure that might be?

Answer 2

If you want the real answers to this question, become God. Otherwise, satisfy yourself with Hawking.

Multiple Universes - it is likely that they do exist, and has been accounted for in the dual slit experiments and brane theory. However, we can only observe their effects and therefore cannot make any solid conclusions.

Universe Boundary - There are a couple ways to approach this. Basically, the universe is expanding faster the farther out you go. If you reach a certain distance, the expansion exceeds the speed of light. Because we cannot exceed the speed of light, we cannot pass this boundary. Because we can not observe what is outside of it, we can not make any guesses. If anything other universes are NOT adjacent, but rather superimposed.

Answer 3

there is one universe, by the definition of the word - 'uni' means one. the universe is all that exists. however, we don't know everything about what it contains. the visible universe has a horizon, because light has a finite speed and the universe began (or at least, came into its present form) a finite length of time ago. presently the light from the horizon (the cosmic background radiation) was emitted about 14 billion years ago. but there is no more reason to think that the cosmic horizon is a boundary than there is to think that the horizon on earth is a boundary. beyond the horizon, we can't see - but probably there is more universe, although we may never know anything about it.

Answer 4

First the definition of a universe: It's whatever that came from an exploding singularity. All of space is not a universe. Our universe has a bondry which is the farthest reaches from the big bang. It's very possible that there could be an infinite amount of singularities and universes. Even if the light could reach us, it would probably be either too small to see or mistaken as something else.

Answer 5

I think the whole idea of multiple universes is just silliness. It makes no sense to me. Its all just a bit of fun for scinece fictions TV shows to think about. I have watched a lot of documentaries about gravity and space and something they call the unified field theory. The theoreticians who study such stuff say that there are likely many more dimensions to this universe than we will ever be able to see. Some say there are 17 dimensions and believe they can prove is mathmatically.

As to the subject of the end of the universe, its far more likely that any "end" we see is more about the limitations of out eyes to see or our brains to percieve than it is about an actual edge of anything. Like when you look up at night, the edge of your universe is the stars you see against a black sky. You only believe there's more because your been told so by scientists who have telescopes that let them see further. So they percieve a larger universe. Someday they will see further than their ability to comprehend what they are seeing. That will be the "end" of the universe.

Answer 6

the super bang around 15 billion years in the past. The universe remains increasing because of the fact of it. The furthest issues away are shifting away at nearlly the fee of sunshine because of the fact they have been accelerating the longest. cutting-edge astro-physics thinks that the super bang became a million of many in a universe with no end in sight or initiating. If there is sufficient remember interior the universe to halt the growth and opposite it via mutual gravitational charm the universe ought to ultimately crumple right into a singularity and bring a huge bang as quickly as extra. This subject could provide us a universe without initiating or end even even with the shown fact that it may oscillate between the super bang to the super crunch to the super bang, advert infinitum, biking as quickly as each and every 22 billion years or so. this extra do no longer forget that they are seeking is ordinary as darkish remember and there is mounting evidence that it does exist in sufficiently vast parts to reason this oscillating universe. How vast is it? The furthest gadgets that we can see are around 12 - 15 billion gentle years away. it is, on the fee of sunshine (7 circumstances international in a million 2d) it may take 12 - 15 billion years to get there. the sunshine we are seeing from those distant gadgets has taken 12 - 15 billion years to realize our eyes that's thrice longer than the Earth, sunlight or image voltaic device has existed. So the universe is extra advantageous than vast, that's extra advantageous than the human suggestions can quite understand. wish this sparks your pastime some extra

Answer 7

Its possible that there are other universes. This has mainly been covered here but I have in my time come across and contemplated another theory of the others that could feasibly exist (though we have no way of proving or disproving this).

The other theory works along the lines of each universe possibly existing within the same space but being of a different "wavelength" like different colours of light etc. This could mean that we are existing with these other universes around us but we simply cannot see them as this wavelength is simply not programmed into the constants and logic that defines our universe.

Again this is all very speculative but worth contemplation.

Answer 8

No one knows. That's like asking what happens after life. There are theories that there is an end to the universe but beyond it is probably just empty space. There are also theories of other universes, connected through black holes and other strange things.

Answer 9

A thousand years ago we believed that the earth was our universe with everything else revolving around it. I'm sure that in another thousand years we will have a little better understanding of what's out there.

Answer 10

Well science can't prove that at this point, although some good theories are floating around.

But it seems as though we keep realizing that there's more than just our earth, then our solar system, then our galaxy. So chances are there's more than just our universe, only time and scientific advances will tell what exactly.