Jon Butterworth , Pedro Ferreira

Physics continues to be big news. But then it always has been.

Pedro G Ferreira, Professor of Astrophysics at the University of Oxford, asks if we have reached the limits of Albert Einstein's General Theory of Relativity - possibly the most perfect intellectual achievement in modern physics.

Jon Butterworth, a leading physicist at CERN, takes us through the Higgs boson story and what it means for us. Rivalries, competition, the value of collaboration, the wonder of scientific discovery and the implications and opportunities this has for us all are debated tonight by two leading physicists known for their work in communicating science.