Is there life inside black holes?

TL;DR

This paper explores the theoretical possibility of stable, life-supporting orbits inside black holes, suggesting that supermassive black holes could harbor civilizations hidden from external observation.

Contribution

It introduces the concept of stable periodic orbits of the third kind inside black holes, expanding the understanding of potential habitats within black hole interiors.

Findings

Existence of stable orbits inside black holes for particles and photons

Potential for life-supporting environments within supermassive black holes

Possibility of observing black hole interiors via white hole counterparts

Abstract

Bound inside rotating or charged black holes, there are stable periodic planetary orbits, which neither come out nor terminate at the central singularity. Stable periodic orbits inside black holes exist even for photons. These bound orbits may be defined as orbits of the third kind, following the Chandrasekhar classification of particle orbits in the black hole gravitational field. The existence domain for the third kind orbits is rather spacious, and thus there is place for life inside supermassive black holes in the galactic nuclei. Interiors of the supermassive black holes may be inhabited by civilizations, being invisible from the outside. In principle, one can get information from the interiors of black holes by observing their white hole counterparts.