Using an adaptation of Einstein's general theory of relativity, Nikodem Poplawski, of Indiana University, Bloomington, analysed the theoretical motion of particles entering a black hole.Hard to get my mind around this one.
He concluded that it was possible for a whole new universe to exist inside every black hole, which could mean that our own universe could be inside a black hole as well.
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"Maybe the huge black holes at the centre of the Milky Way and other galaxies are bridges to different universes," he told New Scientist.
Explaining his theory in the journal Physics Letters B, he said he used the Einstein-Cartan-Kibble-Sciama (ECKS) theory of gravity, in his analysis to account for the angular momentum of particles in a black hole. Doing this it made it possible to calculate a quality of space-time called torsion, a property believed to repel gravity.