Rethinking sex, artificial wombs and how to up your sperm count
25/03/2026 | 26 min
Professor Brian Cox takes a deeper dive into the science of fertility, with a panel of returning experts answering more of your questions.
Should we sequence the DNA of embryos and use A.I. to choose which to implant? Are ultra-processed foods and microplastics really effecting fertility? And will new technologies mean humans could one day reproduce like squid? See omnystudio.com/listener for privacy information.
Decarbonising flying, cleaning up A.I. and the personal cost of climate change
18/03/2026 | 26 min
Professor Brian Cox takes a deeper dive into the science of global warming and how society should adapt, with two experts returning to answer more of your questions. Will new green technologies really help us reach net zero? What is solar forcing? Which regions of the planet will become uninhabitable and when? See omnystudio.com/listener for privacy information.
Cancer vaccines, tumour-killing cells and does fasting work as a treatment?
11/03/2026 | 30 min
Professor Brian Cox takes a deeper dive into the science of cancer, with a panel of returning experts answering more of your questions.
Do tumours communicate with the brain, is glucose carcinogenic and could our immune system’s natural killer cells be used to combat cancer? See omnystudio.com/listener for privacy information.
Ultra processed foods, weight loss jabs and why don’t we eat enough fibre?
04/03/2026 | 36 min
Professor Brian Cox takes a deeper dive into the science of nutrition, with a panel of returning experts answering more of your questions. What is food noise, what is the impact of artificial sweeteners on the gut and why do many women turn from a pear to an apple shape during menopause? See omnystudio.com/listener for privacy information.
Longevity by luck, vaccines for dementia and how fame ages you
25/02/2026 | 29 min
Professor Brian Cox takes a deeper dive into the science of ageing, with two experts returning to answer more of your questions. How do men and women age differently? Why is it healthy to forget things? What’s the latest research on regenerating old cells? See omnystudio.com/listener for privacy information.
Science you can trust. Questions that matter.
Join Professor Brian Cox and a panel of the world’s top scientists and experts as they tackle your questions about some of the biggest science challenges facing society today.
Can we cure cancer? How do you separate nutrition fact from fiction? What do climate change and the march of AI mean for our future? Could we live forever? Each episode is recorded in front of a live audience and it’s their questions that drive the debate.
Hear from the experts who actually know what they’re talking about, including Adam Rutherford, Helen Sharman, George Monbiot, Giles Yeo, Jeanette Winterson, Rory Cellan-Jones, Paul Nurse, Kevin Fong and You, Me and the Big C’s Lauren Mahon.
With a focus on accuracy, openness, and debate, A Question of Science brings you the latest on what we know, what we don’t, and where science might take us next.
A BBC Studios production for the Francis Crick Institute, an independent charity and world-leading research lab.
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