In the 1910s, a relatively unknown cancer researcher named Maud Slye announced the first results of a study with the loftiest ambitions: to identify what causes cancer. To answer that question, the University of Chicago geneticist had bred tens of thousands of mice, enough to fill a three-story building. She carefully documented their ancestry and their morbidities and performed autopsies. And to Slye, her findings were clear: vulnerability to cancer was hereditary. If we wanted to, we could eliminate it. But Slye made some crucial mistakes along the way—and a number of enemies.

Composer Peter Hugh White and librettist Clare Heath join host Rosie Millard in front of a London audience to explore why the story of chemist and x-ray crystallographer Rosalind Franklin and the race to uncover the structure of DNA makes such a compelling subject for an opera.

We hear excerpts that capture the contrasting personalities at the centre of this scientific drama — James Watson, the brash young researcher at the University of Cambridge; Francis Crick, his more measured collaborator; and Maurice Wilkins, an anxious biophysicist uneasy about being outshone by his brilliant colleague, Franklin.

It’s a story of ambition, rivalry, and betrayal: Franklin’s departure from King’s College London and the subsequent publication of the double helix model by Watson and Crick, which was built on insights from her work — yet without giving her due recognition.

Although initial clinical trials of tamoxifen as a treatment of breast cancer were positive, Imperial Chemical Industries (ICI) did not believe this market would be commercially viable. The company had hoped for a contraceptive pill – tamoxifen didn’t work for that – not a cancer treatment. In 1972 the higher-ups at ICI decided to cancel the research.‍

But Dora Richardson, the chemist who had originally synthesized the compound, and her boss, Arthur Walpole, were convinced they were on to something important, something that could save lives. They continued the research in secret. Tamoxifen was eventually launched in 1973 and went on to become a global success, saving hundreds of thousands of lives. Dora Richardson’s role in its development, however, was overshadowed by her a male colleague and all but forgotten.

This Best Of episode first aired in October 2024 to coincide with Breast Cancer Awareness month. It is now also available in a Spanish adaptation, narrated by Laura Gómez.