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Unexpected Elements

Unexpected Elements

BBC World Service 328 episodes Latest May 29, 2026

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.

Episodes

Science bears fruit Jun 5, 2026 3097 Long live the king – of mangoes! In India the famed ‘king of mangoes’, the Alphonso mango, is in drastically short supply after a particularly bad bout of adverse weather. Inspired by the mango’s plight, the Unexpected Elements team takes a look at what fruit science can bear.First, from the ‘king of mangoes’ to the ‘king of fruits’, we hear how the infamously stinky durian could be used to charge
Celebrating science on Africa Day May 29, 2026 2970 How do you translate the latest science work across the 2000 different languages spoken around the African continent? And have you heard of sky mountain? Africa Day has the Unexpected Elements team taking a deep dive into a range of unexpected stories from across the continent.The day is celebrated every year to mark the establishment of the African Union in 1963. In the Turkana region of northern
Unexpected enhancements May 22, 2026 2970 Have you ever wondered what happen to salmon when too much cocaine seeps into their rivers? Inspired by the Enhanced Games, we lookat unexpected areas of performance enhancement. Peptides are making a splash in influencer circles, but what is the science?Plus, we hear from Prof David Putrino, who is making sure the athletes at the Enhanced Games are staying safe. He shares what we can learn from t
Hantavirus outbreak and what’s in a name May 15, 2026 2970 An outbreak of hantavirus on the MV Hondius cruise ship has us looking at the unexpected science around the disease. First up, why is this outbreak such an unusual occurrence? Then, what's in a name? We look at how diseases are named, and why the system has sometimes been problematic. Also, the mysterious case of medicine disappearing from the quarantine tanks at an aquarium. We speak to the expe
One hundred years of Sir David Attenborough May 8, 2026 2970 Sir David Attenborough is arguably the world’s favourite broadcaster, and this week he’s blowing out the candles on his 100th birthday cake. Inspired by his significant birthday, we decided to uncover the biology behind centenarians. What are Sir David’s secrets?Speaking of ageing, we then find out about a little jellyfish that never gets old. Could it help us unlock immortality?Next up, climb ab
The soaring price of condoms May 1, 2026 2972 The blockade on the strait of Hormuz has led to an unexpected consequence – condom prices are set to increase by up to 30 percent! This has us delving into all things contraception, starting with koala hormone implants, the lengthy process of providing birth control to elephants, and a microplastics mystery.Then, we investigate the elusive male contraceptive – why is it taking so long to develop,
Chernobyl: 40 years later Apr 24, 2026 2970 On 26th April 1986, Reactor 4 at the Chernobyl nuclear power plant in Ukraine exploded, releasing vast amounts of radiation. Now, 40 years later, it remains the worst nuclear accident in history. Using the Chernobyl anniversary as a starting point, this week the Unexpected Elements team find out about the weird life thriving at the site of the nuclear reactor. Next up, we discover how radioactiv
The ribbiting science of frogs Apr 17, 2026 2971 In 2025, Russian-born scientist Kseniia Petrova picked up some spliced frog embryos from a laboratory in France and brought them back to the USA to aid her research into ageing and cancer. She was detained by the United States Immigration and Customs Enforcement (ICE), charged with smuggling and had her visa revoked. Now though, a judge has ruled that the scientist’s visa was wrongly cancelled.Ins
Is everyone accounted for? Apr 10, 2026 2970 This month, India began the immense undertaking of surveying its population of 1.4 billion people in the world’s largest ever census. Inspired by this huge task, the Unexpected Elements team explores some population science. First, counting – or miscounting – populations. The global human population may be much larger than previously thought as research shows counts may have missed those living in
Putting science on the map Apr 3, 2026 2971 China’s ambitious underwater mapping operation takes us on a voyage into the depths of ocean and map science.We look at what a network of underwater microphones can tell us about underwater geography, noisy ships, and whale conversations, and how it took nearly 300 researchers working together to map 140 000 neurons in a fruit fly’s brain.Then, we are joined by biogeochemist and author Karen Lloyd
A bumper edition Mar 27, 2026 2969 Japanese pedestrians have been forcefully colliding with each other in a spate of butsukari otoko – or ‘bumping man’ – incidents and the Unexpected Elements team has been inspired to investigate some bumpy science.First, what does your heart desire? Well, at a cellular level, the perfect match! We hear how your heart is built by cells going speed dating. Then, we discuss how birds avoid in-flock c
In the name of science Mar 20, 2026 3372 After the end of a near 17-year legal battle between popstar Katy Perry and fashion designer Katie Perry, the Unexpected Elements team has been inspired to explore the question at the heart of the case – what's in a name? First, we hear how marmosets use their calls as a way of naming which friend they’re talking to. Then, we discover why a phenomenon known as auditory pareidolia means you can’t n

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