Gronyn Gobaith: Cymry Cern

The programme is the concluding half of a two‑part documentary series. It presents the story of the world’s largest physics experiment, positioning the second episode as the final chapter in a broader narrative that began in the first instalment. In this segment the film follows the experiment’s origins in the immediate aftermath of the Second World War. It charts how scientists and engineers laid the groundwork for the venture, then moves forward to showcase the groundbreaking discoveries that have emerged from the facility over the decades. The focus remains on the transition from its post‑war foundation to the transformative scientific outcomes that have reshaped our understanding of fundamental physics. By covering the full arc—from the post‑war establishment through to the experiment’s most significant achievements—the documentary offers a comprehensive look at how a single scientific endeavour grew into a global landmark. As the second part, it ties together the historical context and the cutting‑edge results, delivering a complete portrait of an experiment that continues to push the boundaries of what is possible in physics.