A universe could exist 'inside every black hole,' claims scientist
A hidden universe could exist inside every black hole, a Polish cosmologist has claimed.
02 Aug 2010
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.
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.
"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.
He says instead of matter reaching infinite density in a black hole called "singularities" in Einstein's theory of relativity - the behaviour of the space-time acts more like a spring being compressed with matter rebounding and expanding continuously.
Dr Poplawski explains that this "bounce-back" effect is caused by the torsion of space-time having a repulsive force against the gargantuan strength of gravity in a black hole.
Dr Poplawski also claims that this recoiling effect could be what has led to our expanding universe that we observe today and could explain why our universe is flat, homogeneous and isotropic without needing cosmic inflation.
It is hard to see how we could test whether or not Dr Poplawski's theory is correct; the force of gravity in black holes is such that nothing can escape, so no information about what is going on inside one can ever reach us.
However, according to Dr Poplawski, if we were living in a spinning black hole then the spin would transfer to the space-time inside, meaning the universe would have a preferred direction - something we would be able to measure. Such a preferred direction could be related to the observed imbalance of matter and anti-matter in the universe and could explain the oscillation of neutrinos.