A recent study suggests that each black hole contains another entire universe! According to the new equations, the matter black holes absorb and seemingly destroy is actually expelled and becomes the building blocks for galaxies, stars, and planets in another reality. Essentially, every black hole contains a smaller alternate universe. And our universe might just exist inside a black hole of a galaxy in a much larger universe.
Parallel universes - Black Hole connected to a theoretical White Hole. - If the theoretical science is correct, there are an infinite number of universes with same situations and different outcomes, do you believe?