Stable orbits inside central black holes

Physics World @PhysicsWorld New calculations that combine quantum mechanics with Einstein’s general theory of relativity suggest that gravastars could end up nested inside one another like a Russian Matryoshka doll https://ow.ly/kbNM50QVQGm
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You should also find that any number of stable orbits of neutron and quark stars can fit inside a central black hole. There are an almost infinite number of stable states, or states stable over human observations times. On social media, publishers should link authors and readers. Richard Collins, The Internet Foundation