

Oxford Sparks Big Questions
Oxford Sparks
'Will my bacon sandwich kill me?', 'Is vaping better than smoking?', 'How do you become an astronaut?' - just some of the Big Questions we ask some of the brightest minds behind Oxford science. Join us in each podcast as we explore a different area of science.
Episodes
Mentioned books

Apr 8, 2026 • 13min
How does reading work?
Aside from the odd unfamiliar or complicated word, a lot of us won't think twice when it comes to reading. It's a skill we take for granted. But, relatively speaking, it's actually a fairly new skill - beginning about 5500 years ago. This suggests it's not something we evolved to do, so, how does it work? We chat to Prof Ole Jensen from Oxford's Departments of Experimental Psychology and Psychiatry, who is trying to gain a better understanding of the neural processes behind reading, with the ultimate aim of helping those who are struggling to learn.

Mar 25, 2026 • 17min
What's it like for women working in F1?
Historically, only two women have ever started a Grand Prix race, and as of the 2026 season, no women are competing in Formula One. This male dominancy is by no means restricted to the track, with social scientist Dr Kate Bancroft estimating that a mere 5% of technical motorsport roles (that is, the engineers and mechanics) are taken by women. We hear from Kate about her research into the F1 gender gap, which she hopes - alongside revealing some of the barriers and struggles faced by women - will start a wider conversation about the divide that exists in top-level motorsports.

Mar 11, 2026 • 13min
How do you convert CO2 to rock?
We're living in an age of rapid technological development which - alongside many benefits - comes at an environmental cost. We speak to Dr Shurui Miao, an experimental chemist who aims to decouple technological advancement from the impacts of increased carbon emissions, by finding a way to safely store carbon underground. As he explains, by finding a way to convert CO2 from the atmosphere into minerals, we could store carbon securely and sustainably into the future, and ultimately begin to mitigate the effects of climate change.

Feb 25, 2026 • 38min
From the Milk on the Move podcast: Purity and Danger
Bronwyn Percival, technical director at Neal's Yard Dairy who studies cheesemaking microbes. Heather Paxton, cultural anthropologist exploring raw milk regulation. Deborah Valenze, historian of milk and pasteurization. Bill Oglethorpe, London artisanal cheesemaker. They tour a dairy, probe hygiene and microbial management, trace pasteurization’s cultural history, debate the 60-day rule and show how microbes shape flavor and safety.

Feb 25, 2026 • 12min
What was Einstein doing in Oxford?
Dr JC Niala, Deputy Director at Oxford's History of Science Museum and museum historian, chats about Einstein's 1931 visit and the famous blackboards with his handwritten equations. Short stories cover why he came to Oxford, the political context, his musical life playing violin locally, Oxford's attempts to keep him, and how the blackboards were preserved (and one accidentally wiped).

Feb 11, 2026 • 16min
Where do baby penguins come from?
For this year's Valentine's Day episode, we are getting up close and personal with those most beloved of birds - penguins. Giving us an insight into the love lives of our feathered friends are penguinologists (yes, that's a real word) Dr Ignacio Juarez Martinez and Dr Fiona Suttle, who have both graduated from Oxford's Department of Biology, and spent multiple field seasons in Antarctica monitoring penguin breeding behaviour. We hear how penguin breeding patterns appear to be shifting with changing temperatures, and how you can get involved in their research - just head to Penguin Watch to take part.

Jan 28, 2026 • 13min
How can I use AI to raise my salary?
How much more money could you earn - doing the exact same role - if you're in possession of some solid AI skills? That's one of the core questions that Dr Fabian Stephany, a researcher at the Oxford Internet Institute, hopes to answer. Leading the 'SkillScale' project, Fabian looks into the impact of AI tools on the labour market, with the ultimate hope of advising workers on the best ways to secure jobs and increase their salaries. So, far from a discussion about 'AI stealing our jobs', we ask Fabian - how can we use AI to secure a bigger pay packet? Find out more: Skills or Degree? The Rise of Skill-Based Hiring for AI and Green Jobs AI Skills Improve Job Prospects: Causal Evidence from a Hiring Experiment

Jan 14, 2026 • 12min
Could stuff be living on Saturn's moon?
Are we alone in the Universe? It's surely one of the biggest questions out there. In our first episode of 2026 we chat to Dr Carly Howett, Associate Professor of Space Instrumentation in Oxford's Department of Physics. Specialising in the study of the 'icy worlds' found in our outer Solar System, Carly explains why she thinks one of Saturn's moons, Enceladus, could be a prime candidate for life, and shares the latest updates on how we might find it.

Dec 10, 2025 • 14min
What happened to the birds in 'The Twelve Days of Christmas'?
We all know it. We've all sung it. Perhaps we've even answered a quiz question about it*. The Twelve Days of Christmas has become as quintessentially festive as a figgy pudding, or the bad joke in your Christmas cracker. But why exactly is your 'true love' gifting all these birds? And importantly, how are they faring nowadays? Prof Andy Gosler (from the Edward Grey Institute in the Department of Biology, and Institute of Human Sciences in the School of Anthropology) is the only professor of 'ethno-ornithology' in the world, specialising in the study of the relationships between birds and people. So, who better to be our guest on this festive edition of the Big Questions Podcast, where we take a deep dive into one of our favourite Christmas carols? (*There are 364 presents in total, by the way!)

Nov 26, 2025 • 16min
What is quantum computing?
Want to make something feel immediately complicated, inaccessible or downright mysterious? Stick the word 'quantum' in front of it. Or, at least, that's how many of us feel. But don't worry! Experimental physicist William Cutler from Oxford's Department of Physics is here to break things down, explaining exactly what a quantum computer is, and sharing the remarkable potential that quantum computing holds for advancing fields ranging from drug-discovery to internet security.


