An expanding mini universe could counterbalance the collapsing matter of a star, thereby creating a stable gravastar.
Credit: Daniel Jampolski and Luciano Rezzolla,
Goethe University Frankfurt
Goethe University Frankfurt
Creationists like to think they have dealt a death-blow to cosmology with the childish question, "How can a universe come from nothing?" Usually, this is not so much an argument as an admission that they have mistaken a failure of their own imagination for a law of physics. They begin with the assumption that "nothing" must mean a sort of empty box waiting for a god to put something in it, then demand that science should explain the box, the waiting, and the god.
But modern physics has a habit of being far more imaginative, and far less parochial, than Bronze Age mythology.
A paper recently published in Physical Review D, by theoretical physicists Daniel Jampolski and Professor Luciano Rezzolla of Goethe University Frankfurt, explores one of those ideas that sounds, at first hearing, almost like science fiction: a collapsing star might not inevitably form a conventional black hole. Under the right conditions, the collapse could instead generate what is called a gravastar — a gravitational vacuum star — containing an expanding region of dark-energy-like spacetime, rather like a tiny universe forming inside the dying star.
This does not mean, of course, that physicists have proved that our universe began inside a star, still less that they have solved every problem in cosmology. Nor does it mean that "nothing" in physics is the same as the philosopher's or theologian's absolute nothing. What it does show, however, is that serious scientists can construct mathematical models in which expanding spacetime can arise naturally from the equations of general relativity, without once needing to insert a magic being, a supernatural command, or a cosmic conjuring trick.
That is the part creationists habitually miss. Science is not claiming that universes pop into existence by magic. It is doing what science always does: examining what the known laws imply under extreme conditions, identifying where those laws may need refinement, and testing whether natural processes can account for phenomena that once seemed impossible. In this case, the model suggests that when matter collapses to almost the point of becoming a black hole, a rapidly expanding de Sitter region could form inside it and counterbalance the collapse.
So, far from helping creationism, this work illustrates precisely why the creationist argument from incredulity is so feeble. "I don't understand how it could happen naturally" is not evidence for a god. It is merely the opening sentence of a scientific investigation.



































