n.(cosmology) the cosmic explosion that is hypothesized to have marked the origin of the universe

Big-Bang nucleosynthesis (Particle Data Group mini-review)
Ekpyrotic universe: Colliding branes and the origin of the hot big bang
Quantum nature of the big bang
Adiabatic CMB perturbations in pre-Big-Bang string cosmology
Big-bang nucleosynthesis and hadronic decay of long-lived massive particles
From big crunch to big bang
The Pre-Big Bang Scenario in String Cosmology
A new optimization method: Big Bang–Big Crunch
Pre-big-bang in string cosmology
Radiative Decay of a Long-Lived Massive Particle and Big-Bang Nucleosynthesis