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Inside a rotating or charged black holes there are bound periodic planetary orbits, which not coming out nor terminated at the central singularity. The stable periodic orbits inside black holes exist even for photons. We call these bound orbits by the orbits of the third kind, following to Chandrasekhar classification for particle orbits in the black hole gravitational field. It is shown that an existence domain for the third kind orbits is a rather spacious, and so there is a place for life inside the supermassive black holes in the galactic nuclei. The advanced civilizations may inhabit the interiors of supermassive black holes, being invisible from the outside and basking in the light of the central singularity and orbital photons.
Is there life inside black holes?
Cosmologists have known for some time that there are regions inside charged, rotating black holes where objects such as photons can survive in stable periodic orbits.
Dokuchaev's contribution is to study these orbits in detail and to explore their dynamics. One of the problems that would at first seem to scupper any chance of planetary orbits inside a black hole is the way that the dimensions of space and time behave.
It's well known that a traveller passing through a black hole's event horizon arrives in a region in which the radial dimension becomes time-like, rather than space-like. Conventional orbits are clearly impossible here.
But travel further in and there is another horizon where the dimensions switch back again (at least, inside charged and rotating black holes). This is the inner Cauchy horizon and it's beyond here that Dokuchaev says the interesting orbits for massive planets exist.
He calculates that the stable orbits are nonequatorial and have a rich structure (see picture above). They would also be brightly illuminated by the central singularity and by photons trapped in the same orbit.
That raises an interesting question: whether a planet in such an orbit could support a complex chemistry that is rich enough to allow life to evolve.
Dokuchaev clearly thinks so. "Advanced civilizations may live safely inside the supermassive BHs in the galactic nuclei without being visible from the outside," he says, somewhat speculatively.
Of course, such a civilisation would have to cope with extraordinary conditions such as huge tidal forces and the huge energy density that builds up in these stable orbits as photons become trapped. There's also the small problem of causality violations, which some cosmologists predict would plague this kind of tortured space-time.
arxiv.org...
Vyacheslav Dokuchaev at the Institute for Nuclear Research of the Russian Academy of Sciences in Moscow points out that certain black holes can have a complex internal structure. And that this structure ought to allow photons, particles and perhaps even planets to orbit the central singularity without ever getting sucked all the way in.
nextbigfuture.com...
Like part of a cosmic Russian doll, our universe may be nested inside a black hole that is itself part of a larger universe. In turn, all the black holes found so far in our universe—from the microscopic to the supermassive—may be doorways into alternate realities
Originally posted by itsallmaya
I found it amusing when the experts in the fields come right out and admit to advanced civilizations or at least entertain the fact especially when the paper is coming from a prestigious institution like Cornell University.
Could it be possible that our universe is inside a black hole? Did the universe start when a blackhole was formed? Is it possible that the aliens people see are visitors who travel through black holes?
Originally posted by gortex
There is a theory in Physics that our Universe exists within a Black Hole
Like part of a cosmic Russian doll, our universe may be nested inside a black hole that is itself part of a larger universe. In turn, all the black holes found so far in our universe—from the microscopic to the supermassive—may be doorways into alternate realities
news.nationalgeographic.com...
A truly mind boggling thought
Originally posted by Pastafarian
what if the universe is fractal and black holes are the places where new universes (fractals) branch off?
I actually think this may hold some truth.
Originally posted by cripmeister
Originally posted by itsallmaya
I found it amusing when the experts in the fields come right out and admit to advanced civilizations or at least entertain the fact especially when the paper is coming from a prestigious institution like Cornell University.
The idea that we're not alone in the universe is widely accepted in the scientific community, but not the idea that we're being visited. There's a big difference.