Recent research is exploring alternative models for black holes that challenge the traditional concept of a singularity, where the laws of physics break down. These models, highlighted in a paper published in the Journal of Cosmology and Astroparticle Physics, address the singularity problem with two main concepts: regular black holes and black hole mimickers.
Regular Black Holes: This model replaces the singularity with a core of finite density. This core might create repulsive gravity, which prevents a complete collapse.
Black Hole Mimickers: This model lacks both a singularity and an event horizon, allowing light and signals to escape, thus maintaining a connection with the external universe. These objects could potentially transform into each other based on varying physical conditions.
These theoretical models offer potential solutions to the singularity issue and align better with current physics laws. Scientists suggest that future observations, such as high-resolution imaging from the Event Horizon Telescope or the detection of subtle anomalies in gravitational waves, could help distinguish these models from standard black holes and provide insights into their internal structure. This research could pave the way for a better understanding of quantum gravity and the unification of general relativity with quantum mechanics.