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BBC World Service


The news you know, the science you don’t. Unexpected Elements looks beyond everyday narratives to discover a goldmine of scientific stories and connections from around the globe. From Afronauts, to why we argue, to a deep dive on animal lifespans: see the world in a new way.


Unexpected Elements

The Portrait of Elisabeth Lederer by Gustav Klimt has recently sold for $236m, making it the second-most expensive artwork ever sold at auction. 

Inspired by this headline, the Unexpected Elements team delve into the story of how microbiology may have influenced Klimt’s work.

Speaking of microbiology, we find out that bacteria could help restore frescoes to their former glory. 

We also get on the line with Dr Siyakha Mguni, an archaeologist and senior lecturer at the University of Cape Town, who tells us about ancient artworks far older than anything Klimt ever painted. 

Plus, the world’s biggest spider’s web, and why mosquitoes are impressive 3D printers. 

All that, plus many more Unexpected Elements.

Presenter: Marnie Chesterton, with Andrada Fiscutean and Edd Gent
Producers: Alice Lipscombe-Southwell, with Margaret Sessa Hawkins, Alice McKee, Lucy Davies and Robbie Wojciechowski

The unexpected science behind Klimt's artwork

The Miss Universe pageant final has us considering the science of beauty. How much of our perception of beauty is genetic, and how much is down to personal experiences? We also look at the science behind competitions and the audience effect. Why do we sometimes perform better when we’re watched?

Also on the show, Oxford professor Marcus du Sautoy explains why maths can be beautiful, and former Miss Universe Ireland and NASA datanaut Fig O’Reilly talks about balancing pageants and a career in science outreach. 

Plus, the science behind death metal singing, why civet coffee tastes so good, and how ugly plants inflame allergies, on this week’s Unexpected Elements. 

Presenter: Caroline Steel, with Katie Silver and Sandy Ong
Producers: Margaret Sessa-Hawkins with Alice Lipscombe-Southwell, Lucy Davies, Robbie Wojciechowski and Alice McKee

Some Beautiful Science

A 150-year-old bottle of Arctic Ale is being uncapped, which got the team talking about all things related to yeast, beer, and opening things. 

First, we hear about a rare condition where the body brews its own alcohol. Next up, we find out that small amounts of alcohol make male fruit flies more attractive. 

We’re then joined in the studio by food historian Pen Vogler, who helps us travel back in time to explore beer’s origins. 

Next, we discover how air pollution is affecting our brains, and delve into some surprising ways that yeast could help the climate. 

All that, plus many more Unexpected Elements. 

Presenter: Marnie Chesterton, with Chhavi Sachdev and Candice Bailey
Producers: Alice Lipscombe-Southwell, with Lucy Davies and Robbie Wojciechowski

A keg of beer-based science

As rescue and relief efforts in the Caribbean are ongoing after Hurricane Melissa, Unexpected Elements looks at the science of storms. 

We explore how AI might help us better predict the weather patterns, and whether it could act as an early warning signal to help us prepare for natural disasters, and we look at what a sinkhole off the Coast of Belize has helped reveal about 6000 years of storm history in the Caribbean. 

Giles Harrison, Professor of Atmospheric Physics at Reading University helps explain the unexpected link between bees and storm clouds. We also investigate whether storms with female names are more deadly, your letters have us contemplating banana varieties, and whether wind turbines could ever have an effect on the breeze.

Presenter: Alex Lathbridge, with Andrada Fiscutean and Leonie Joubert
Producers: Margaret Sessa-Hawkins with Eliane Glaser, Minnie Harrop, and Lucy Davies

A storm of science

The daylight robbery of precious crown jewels from the Louvre museum in Paris has us stealing your attention to inspect heists and crime scenes in science.

We explore how stealthy spiders use tricks and deceit to rob precious prey from one another, and we look at how seagulls and other birds have the advantage when it comes to stealing food from humans. We also learn how our immunological security systems try to prevent bacteria from doing an iron-heist from our cells and blood.

But what about figuring out whodunnit? Forensic ecologist and palynologist Professor Patricia Wiltshire shares how pollen can be instrumental when solving crimes and how thorough, detailed forensic work can help uncover the truth when unravelling mysteries.

We also hear about the tensions between elephants and humans in Kenya, why we prefer the taste of certain foods, and how the code to a famous puzzle-filled sculpture might have finally been cracked. 

All that, plus many more Unexpected Elements.

Presenter: Marnie Chesterton, with Phillys Mwatee and Kai Kupferschmidt
Producers: Imaan Moin, with Lucy Davies, Eliane Glaser and Robbie Wojciechowski

A science heist

Europe has a new entry/exit system based on biometric data. But what exactly is the science behind biometric data, how can we ensure it’s used responsibly, and can it be cracked?

We also look at how some animals use dung as biometric data with Dr. Adrian Shrader, how your walk can be used to ID you from Professor Mark Nixon, and why gold has its own special measurement. All that plus many more Unexpected Elements.

Presenter: Marnie Chesterton
Producers: Margaret Sessa-Hawkins with Lucy Davies and Robbie Wojciechowski

How does biometric data work?

Record high gold prices have us looking at the science of inflation, why gold is leaking from volcanoes, and entomologist Katy Prudic explains why shiny gold can be a good color for camouflage.

Plus the dark science going on in a gold mine, whether we can move at the speed of light, and the debate around golden rice. All that, plus more unexpected elements.

Presenter: Marnie Chesterton
Producers: Alice Lipscombe-Southwell, with Margaret Sessa-Hawkins, Robbie Wojciechowski and Lucy Davies.

Why are gold prices so high?

Egyptian strongman Ashraf Mahrous recently pulled two ships totalling 1,150 tonnes with his teeth, setting his sights on the Guinness World Record. Inspired by this story, this week we’re tackling the science of all things strong. 

First, we find out about new research that could keep our muscles strong as we age. Next up, we discover why graphene is so strong and how it could help improve data storage. 

We're then joined down the line by Dr Matt Caplan, an astrophysicist from Illinois State University, who tells us about his search for a weird substance called ‘nuclear pasta’. And no, you won’t find it in your local Italian restaurant. 

Plus, find out how robo-exoskeletons can help you climb hills and why Ernest Shackleton’s Endurance was weaker than expected. 
All that, plus many more Unexpected Elements. 

Presenter: Marnie Chesterton, with Kai Kupferschmidt and Andrada Fiscutean
Producers: Alice Lipscombe-Southwell, with Robbie Wojciechowski and Lucy Davies

The strongest stuff in the Universe

The launch of Taylor Swift’s much-anticipated 12th studio album, The Life of a Showgirl, has inspired this week’s episode of Unexpected Elements.

First up, we hear how a Brazilian songbird courts its mate as part of a boyband. We then find out about the microbes that dance to survive in their extreme habitat. 

Next up, Professor Troy Magney, a forest ecophysiologist at the University of Montana, tells us about his TSWIFT machine and how it can assess the health of the planet’s forests. 

Also in the programme, we find out why migratory birds trick weather data, how fish sing, and how hackers used SWIFT bank payments to nearly pull off a billion-dollar heist.

All that, plus many more Unexpected Elements. 

Presenter: Marnie Chesterton, with Camilla Mota and Godfred Boafo
Producers: Imaan Moin and Alice Lipscombe-Southwell, with Robbie Wojciechowski and Lucy Davies

Science inspired by Taylor Swift

This week marks 200 years since the first steam train pulled passengers over 26 miles of north-east England’s countryside, and started a revolution. Jump on board for show filled with train tales.

We explore Mumbai’s lunch delivery system – train based, of course, which has the sort of error rate that delivery firms arounds the world can only dream of. We ask what it takes to run a railway on time, and look at how the bullet train changed Japan, with history professor Jessamyn Abel.

Presenter: Marnie Chesterton
Producers: Margaret Sessa-Hawkins with Alice Lipscombe-Southwell, Robbie Wojciechowski, Lucy Davies

Two-hundred years of trains

Passionate K-Pop fans send us on a journey into the science of fandom. Panellists Andrada Fiskutean in Bucharest, Romania and Tristan Ahtone in Helsinki, Finland bring us stories of Star Trek’s sci-fi utopias, why allegiances affect our behaviour and how a cunning sea creature chooses which side of itself to reveal. 

Presenter Marnie Chesterton meets one of her heroes - American theoretical cosmologist and particle physicist Dr Chanda Prescod-Weinstein, who helps Marnie understand the universe with lyrical beauty.

Fandom: The next generation

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