Physicists Propose 57 E-Fold Black Hole Universe Model, Recasting Big Bang as a Bounce
Updated
Updated · The Brighter Side of News · May 13
Physicists Propose 57 E-Fold Black Hole Universe Model, Recasting Big Bang as a Bounce
5 articles · Updated · The Brighter Side of News · May 13
A University of Portsmouth-led team argues the universe began when a collapsing matter cloud rebounded inside a black hole, replacing the Big Bang singularity with a quantum-driven bounce.
The Physical Review D model says fermion degeneracy pressure halts collapse at extreme density, turns effectively negative, and triggers both the bounce and an inflation-like expansion consistent with about 57 e-folds.
Using observed values for dark-energy density and H0, the authors estimate a 5.1 ± 0.1 gigaparsec Schwarzschild radius and a total mass of roughly 5.4 × 10^22 solar masses for the finite parent structure.
The framework predicts a slightly closed universe and a large-scale cutoff in primordial perturbations, potentially linking the bounce to cosmic microwave background anomalies beyond about 66 degrees.
The team says those curvature and CMB signatures make the idea testable, though the current analysis still relies on idealized spherical symmetry and simplified quantum effects.
If our universe was born inside a black hole, could 'cosmic fossils' from a parent universe finally solve the mystery of dark matter?
A new theory claims our universe is slightly curved. Could this explain cosmic anomalies that have stumped scientists for decades?
Did JWST's 'impossible' early galaxies grow from the seeds of a universe that existed before our own Big Bang?
The Black Hole Universe Model Under Scrutiny: New Evidence from Euclid, JWST, and ARRAKIHS Missions
Overview
As of May 2026, cosmology is entering a new era, driven by advanced space missions like ESA's Euclid, which launched in 2023 to map the universe and study its structure. These missions aim to answer big questions about the universe’s shape, dark matter, and early galaxies. Their data are crucial for testing new ideas such as the Black Hole Universe model, which suggests the universe is slightly curved and began with a cosmic 'bounce.' The insights gained will help confirm or refine these theories, deepening our understanding of how the universe formed and evolved.