Cosmic rebound: a black-hole past could have sparked our universe's birth
A team from the University of Portsmouth and the Institute of Space Sciences proposes a 'black hole universe' theory in which our cosmos rebounded from a prior collapse, rather than arising solely from a Big Bang singularity. The model suggests remnants like black holes could survive as cosmic fossils, potentially shaping the current universe and addressing mysteries such as the nature of dark matter, what triggered the Big Bang, and how galaxies formed. Published in Physical Review D, the theory outlines tests such as relic gravitational waves or patterns in the cosmic microwave background to identify evidence of a prior collapsing universe.
