Primordial black holes could hide a multiverse of possibilities
The discovery of primordial black holes could answer a multitude of lingering questions such as the nature of dark matter, and how heavy elements are synthesised in addition to hiding entire bubble universes.
Before the stars and galaxies even began to form in the early Universe, some researchers believe that the cosmos could have been occupied by a multitude of tiny primordial black holes. These purely hypothetical black holes would have formed in a radically different way than larger and more familiar black holes which physicists, cosmologists, and astronomers have confirmed to exist.