How the Universe Works

Recent astronomical and theoretical discoveries have prompted scientists to reconsider whether the Big Bang truly occurred as traditionally described. They are also exploring the possibility that this singular event may have initiated a multitude of parallel universes, suggesting a broader multiverse framework.

The programme Did the Big Bang really happen? is presented as a single episode that asks whether the widely accepted origin story of our universe actually holds up under scrutiny. It positions itself as a scientific investigation, inviting viewers to follow the latest thinking about the cosmos’s earliest moments. In the core of the episode, recent discoveries are highlighted as the catalyst for renewed doubt. Scientists featured in the show point to new observational data and theoretical work that cast uncertainty on the notion that a single, explosive event marked the birth of everything we see. The material suggests that the evidence now available makes it reasonable to question if the Big Bang truly occurred as traditionally described. Beyond merely challenging the classic picture, the programme also raises the idea that what we call the Big Bang might instead have been the beginning of a suite of universes. This multiverse concept is introduced as a possible alternative explanation, implying that our universe could be one of many that sprang into existence from a common origin. By concentrating on these emerging questions, the episode encourages the audience to reconsider long‑standing cosmological assumptions. It shows how fresh data can prompt scientists to rethink the fundamentals of how the universe—or perhaps a collection of universes—started.