Our universe is so big and we haven't explored even a millionth of a millionth of .......... part of it. We have not gone anywhere outside our own solar system.
Yet some scientists, in which there is greatest among the greats Sir Einstien also, believe that there is more than one universe in which we can go by passing through a worm hole.
It is quite an intriguing topic and once you start studying about it you go more and more deep into it.The logic behind this is, "though there are mathematical models also but i m talking here in our day to day general language", that every particle has its antiparticle and extending that logicto universe scientists conclude that there must be an antiuniverse to every universe.
Some even suggest that to every universe there must be a universe in which similar kind of things must be happening but the direction of time must be reverse, that is my anti- in the universe which will be corresponding to our universe will be born old and die as a child.
Also about time travel it is written that if we travel around the event horizon of a blackhole we will reach back in time but not in this universe but our corresponding universe.
These things quite puzzle me very much. I m posting this so that i can have views and any interesting facts on this topic which is so exciting and mind-blowing.
Do write.

Bye Pals.

If there was another universe it wouldn't be another one. It would have to be somehow conected to our universe somhow and then if it was it would be the same universe. It's kindof like sayong that inside your house and outside of it are two different sorlds.

You should watch Donnie Darko. It deals with the concept of a Parallel or Tangent Universe.

I don´t think so. We still don´t know about the limits (if there are) of the universe we know. Maybe it´s infinite... we don´t know, so it´s a waste of time to think about others right now. For me, a universe is all that exists so there´s no reason why should be two... if there were, would be two parts of the same universe. It´s confusing but I guess you know what I mean.

there could be, but hence the name there's only one... currently.

Firstly, I think the concept of worm holes were supposed to mean traveling from one place of the universe to another place, still in the same univese. And I don't think that Einstein, nor Hawking or anyone else, have ever specifically said that they think that there is more than one universe.

Actually, I think that there cannot be more than one universe simply because the definition of the word 'universe' doesn't allow it. The universe is specifically: Everything. There can't be two everythings! That's like saying that there is a 2*infinity amount of stars in the universe, it's the same as saying there's an infinity amount of stars in the universe. Here's the def'n:

I don't think that that definition allows for there to be more than one universe, though I do think that the universe is so fricken huge that it may seem to be an infinite, or "double infinite," or even two universes into one, but in the end all of those boil down to the same thing...

lol. i'm guessing you're talking about parallel universes. The idea of multiple universes is not even a theory, it's just a myth. Only ideas that can be proven with evidence or to have a way to test it can be called a theory. Ideas that cannot be proven is not consisted as theory. Since you are talking about multiple universes, then i'm pretty sure you have at leasted heard of the string theory. The string theory isn't really a theory, since there are no way to prove it.

I don't exactly know what is the different between a wormhole and a black hole, other then that wormholes can be vary in sizes. People believe that black hole can be used for time travel. The reason why people think of it this way is that, the gravitational pull of the blackhole is so intense that lights cannot escape from it (therefore it is called a blackhole, since you cannot see it). Scientists treat time the same way as they treat waves. The stronger the gravity, the better it can bend and pull the wave. Imagine time being pull and bend, time would get longer which means to outsider observers ... you are SLOWING DOWN EXTREMELY, but to your observation, time travel normally. So if you were sucked in by a blackhole, people will see (if the light can escape from the gravity) that you have a slow and painfull death, but to you.. the instants that you were sucked in.. you were crumpled up into a tiny little dusts.

My point is, it might be possible to slow down or acclerate time, but you cannot go back/reverse into time. It just seem illogical.

It's pretty hard to imagine of a multiple unverises because as we know it, our universe is infinite. So the idea of multiple unverises is like 2 times infinity.

Actually, if there were more than one, it wouldn't be called "universe" anymore because "uni" means only one.

Edit: Well, or even if there were more than one, like what matto said, it's counted as one combined, united, etc etc you get the picture. If you wanted to consider more than one "set" of planets, stars, moon, etc, you would have to redefine terms, words, entire discourses... entire subjects... Kind of pointless imho

This post has been edited by dodgerblue: May 3 2006, 05:26 PM