Could there be other universes inside the black holes?

 Could there be other universes inside the black holes?

The multiverse theory is not describing the place of other universes, and that means the other universes can be inside even in our universe. So that means that in some theories the material, what the black hole pulls inside it can form even the similar galactic structures that we have in our universe. 

So we cannot reach the other universes because they are beyond the event horizons, and the information travels only to the black hole. And of course, people ask could there be intelligent aliens? Who knows about that thing, because everything that we are writing about black holes and things, what are happening beyond the event horizon is speculation. 

There could be miniature universes inside black holes at least in the holographic image. Says the new theory.

There is a theory that the black holes are storing images about things, what are around it. And that thing means that there is a fractal virtual universe inside the black hole. And in some more interesting theories, the singularity or the area that is beyond the event horizon is not homogenous. That means there could be bubbles or thicker areas in that area, and those bubbles of stronger gravity would orbit the nucleus of the black hole. 

Those bubbles can form at different times, and they could store the projection of the universe. The idea is that when the larger black hole would pull another black hole inside it, that smaller back hole would stay as the "sub-black hole" or the bubble black hole inside the main singularity. That "sub-black hole" will start to act like other black holes and send the radiation to the event horizon. 

When the radiation would impact at some point it would push the singularity away, and when it passes the point, the singularity will drop back again. And that thing causes that the photons or some other particles will slip away from the black hole. That movement is not very big, but it causes that some part of the black hole is loosing.

So theory continues that the material can start to orbit the nucleus of the black hole in some form, which could be superheated plasma or electromagnetic wave movement. And it can form the spiral inside the event horizon. That spiral would start to push the event horizon away from the nucleus, and that thing causes that the black hole is starting to boil. 

The boiling black holes are losing their material faster than other black holes, but that reaction is extremely slow. The boiling effect is the result of the material and radiation that is jumping inside the singularity, which cannot let those particles and wave movement go. 

So the small black holes are always extremely hot inside them, but how hot that thing depends on the density of radiation and material what is inside that thing. When the material is dropping through the event horizon, it continues to travel to the nucleus of it. And sometimes the material would start to circle that extremely dense nucleus, what is starting to act like an event horizon, but in a smaller and more energetic form. But that thing is only a hypothesis. 

https://www.space.com/bizarre-charged-black-holes.html