The discovery in the early 1970s that black holes radiate as black bodies has radically
affected our understanding of general relativity, and offered us some early hints about the …

Horizon-scale images of black holes (BHs) and their shadows have opened an
unprecedented window onto tests of gravity and fundamental physics in the strong-field …

Black-bounce to traversable wormhole Page 1 Journal of Cosmology and Astroparticle
Physics Black-bounce to traversable wormhole To cite this article: Alex Simpson and Matt …

For distant observers, black holes are trapped spacetime domains bounded by apparent
horizons. We review properties of the near-horizon geometry emphasizing the …

Mass inflation is a well established instability, conventionally associated to Cauchy horizons
(which are also inner trapping horizons) of stationary geometries, leading to a divergent …

We discuss static spherically symmetric metrics which represent nonsingular black holes in
four-and higher-dimensional spacetime. We impose a set of restrictions, such as a regularity …

While singularities are inevitable in the classical theory of general relativity, it is commonly
believed that they will not be present when quantum gravity effects are taken into account in …

We show that there is a classical metric satisfying the Einstein equations outside a finite
spacetime region where matter collapses into a black hole and then emerges from a white …

A bstract The evaporation of black holes raises a number of conceptual issues, most of them
related to the final stages of evaporation, where the interplay between the central singularity …

The 1965 Penrose singularity theorem demonstrates the utterly inevitable and unavoidable
formation of spacetime singularities under physically reasonable assumptions, and it …