For millennia, people have obsessed over questions about the nature of matter in our universe. Then, by the turn of the twentieth century, we believed we had answered everything. Our understanding of matter was finally complete. But an unprecedented outburst of scientific discovery was about to change the course of history...

Dr Suzie Sheehy is an accelerator physicist, academic and science communicator. Suzie joins Dan to introduce us to the people who staged ground-breaking experiments— from the serendipitous discovery of X-rays in a German lab to the race to split open the atomic nucleus, Suzie reminds us of the thrilling discoveries that have shaped our lives.

This episode was produced by Hannah Ward, the audio editor was Dougal Patmore.

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