2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/178033It is demonstrated that due to back-reaction of quantum effects, expansion of the universe stops at its maximum and takes a turnaround. Later on, it contracts to a very small size in finite future time. This phenomenon is followed by a " bounce" with re-birth of an exponentially expanding non-singular universe.High Energy Physics - TheoryAstrophysicsGeneral Relativity and Quantum Cosmologytext