Could it be other universes somewhere?

Could it be other universes somewhere?

There are two main versions of the multiverse or parallel universe theory. 

Multiverse- or parallel universe theory means that there could be other universes than our universe. Those universes can be in other dimensions or they can be in the same dimension, but they can be nested or they can be connected by wormholes. 

And in some of the most exotic theories inside the black holes can be other miniature universes. That kind of thing would be fascinating, but they are only hypotheses. There is nothing, that would show the existence or lack of other dimensions or universes, and there are two main versions of this theory, that there could be other universes, what might be different from our universe existed. So that thing is one of the most interesting theories about what is ever introduced. But that theory is really hard to prove, and that's why this kind of ideas are only theories.

1) There are other universes in the same dimension, where we are living

The idea of this particular version of the multiverse theory is that the universe is the hypergroup of the galaxies, where the galaxies are like in the bubble, and if we would see far enough, we would see many other similar bubbles. This is one of the most common translations of the multiverse theory. 

The idea is that the cosmos, which means the space, where the bubbles or universes are hovering is endless, and there are billions of bubbles, that are forming the universes. And in this theory, the space between those bubbles is "empty", which means that the distance of individual atoms could be so big and there could be the universes, what is forming from antimatter or there could be only dark matter, what means that the universe is invisible. Or there can be only black holes in some bubble, what is calling as the universe.

2) There could be universes also in other dimensions 

In this theory, there would be other universes in other dimensions. There is a possibility to travel through the other dimension by using the wormholes, which are connecting the black holes that are located in different dimensions together. So the difference of this theory with the first is that the universes can be in other places and other dimensions. 

This is one of the most exciting theories in the world, and maybe the existence of the other dimensions. The idea is that those universes are like jewels in the necklace, and universes are connecting by the wormholes. And if that theory would be true, that thing would revolutionize science.  

That theory would explain many things, like the Big Bang and the missing material of the universe. The wormholes, what are going through the universes can affect the energy levels and other things in the universe. But the one thing that this thing explains is the Big Bang. In this version of the multiverse theory, the material came to our universe from the "white hole", what is the "anti-black hole". The "white hole opened to our time and space, and that thing released the material into the universe. 

But even if there are other universes there is a possibility that in those universes are no stars at all. That means that the universes can be formed by the dark matter homogeneous hydrogen atoms, or black holes, and in this case, the system cannot be seen. But the thing is that if the energy level of the Big Bang can be too high, the distance between the atoms would be too big, that they cannot form molecules.

And in that case, the universe would consist of only homogeneous hydrogen atoms, what cannot form the stars. Or if the energy of the Big Bang would be too low, that means that the atoms of the universe would be too close of together, and in that case, would forming the large numbers of the supermassive black holes, what makes life impossible in the form as we know it in that kind of universes

Multiverse theory: https://en.wikipedia.org/wiki/Multiverse

Image: https://en.wikipedia.org/wiki/Multiverse#/media/File:WMAP_2010.png