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Unexpected Elements

Unexpected Elements

BBC World Service 328 Episodes Oct 16, 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

Taking a shortcut
Taking a shortcut Oct 16, 2026 2970 After a Chinese fitness influencer was caught hitching a lift on a bicycle during the Berlin Marathon, the Unexpected Elements team find themselves contemplating a range of scientific shortcuts. First up, we hear about how Earthlings may have been hitching a lift on the back of asteroids all the way to the clouds of Venus. Next, can you tell if someone drinks beer from an X-ray of their knee? Of c
Walk the line
Walk the line Oct 9, 2026 2970 Estonian athlete Jaan Roose recently completed a jaw-dropping slackline display, performing daredevil tricks 120 metres above the streets of central Seoul, South Korea.This exciting event by a world champion slackliner got the Unexpected Elements team thinking about risk-taking, acrobatics and skyscrapers. First up, we discover that there may be anatomical differences in the brains of people who e
Rogue Agents
Rogue Agents Oct 2, 2026 2970 This week’s news of an AI agent managing to hack into an Australian government website has the Unexpected Elements team exploring the sneaky science of infiltration.Marnie Chesterton is joined by science journalists Paul Adepoju and Andrada Fiscutean to discover how South African drongo birds have developed an ingenious technique to protect their nest from cuckoo eggs, and to hear about the unusua
An identity crisis
An identity crisis Sep 25, 2026 2971 When a NATO fighter jet was sent to investigate what appeared to be a suspicious drone near Vilnius airport, the culprit turned out to be something rather less threatening: a flock of birds. Inspired by this case of mistaken identity, the Unexpected Elements team explores the science of getting things wrong. We discover why our brains are so eager to spot faces in everyday objects, from clouds to
A distorted view
A distorted view Sep 18, 2026 2971 With the United Nations encouraging wider use of the Equal Earth map, a projection designed to better represent the true size of Earth's landmasses, the Unexpected Elements team have been thinking about distortion and the surprising new ways we can see the world and beyond. We discover that every city's subway system has its own unique microbial fingerprint, so distinctive that researchers can ide
The phizz-whizzing science of Roald Dahl
The phizz-whizzing science of Roald Dahl Sep 11, 2026 2971 Roald Dahl Day is celebrated each year on 13 September. Dahl gave us much-loved children’s books like Matilda, The BFG and Charlie and the Chocolate Factory, which have captivated kids for generations.Dahl is also a controversial figure, and made anti-semitic remarks that his family have since apologised for. We explore the separation of art and artist, and go looking for the science hidden in Dah
The show must go on
The show must go on Sep 4, 2026 2971 The 80th birthday celebrations of the late, great Queen frontman Freddie Mercury have us marvelling at mercury at an elemental level: as a killer, a cure and more.First, we hear about how to make a telescope mirror out of a spinning bowl of liquid mercury. Then we hear about killer queens; it’s a gruesome tale of pheromone-induced ant warfare.Next, Freddie’s rare condition that caused him to have
A very dry episode
A very dry episode Aug 28, 2026 2970 Vast swathes of Europe and Asia are experiencing drought conditions, thanks to relentless heatwaves and lack of rain. This week, we find out why drought conditions could unexpectedly lead to an increase in water-borne disease. Next up, we take a trip to Lake Malawi to discover why a tiny fly could help us rewrite the science of insects. Also on the show, we’re joined by Professor Dan Parsons from
Fashionably late
Fashionably late Aug 21, 2026 2971 News of an Australian library book finally finding its way home 150 years after it was borrowed has the Unexpected Elements team thinking about things that get forgotten, filed away or simply turn up much later than expected.We start with the story of a meteorite from Mars that spent millions of years travelling through space before ending up in a university drawer. Then, we investigate why scient
Light entertainment
Light entertainment Aug 14, 2026 2970 As Europe experiences its first total solar eclipse in almost 30 years this week, Unexpected Elements investigates the surprising science that emerges when sunlight is blocked out. We travel to the forests of Italy, where we investigate whether trees can communicate their eclipse plans to each other. We learn about an ambitious scientific plan to launch a wall of bubbles the size of Brazil into ou
Someone's always watching
Someone's always watching Aug 7, 2026 2970 The UK's Royal Society for the Protection of Birds has found that birdwatching is the second-fastest growing hobby amongst Gen Z with 750,000 of them regularly venturing into the outdoors to spot some of our feathered friends. Inspired by this new appreciation for an old pastime, the Unexpected Elements team are on the lookout for some birdwatching science. First, we watch birds, but did you know
Down The Rabbit Hole
Down The Rabbit Hole Jul 31, 2026 2970 75 years ago, Walt Disney's Alice in Wonderland hit our screens, welcoming us into a technicolour, topsy-turvy world of eccentric characters – including the Mad Hatter, the Cheshire Cat, the Queen of Hearts, the White Rabbit and many more.On Unexpected Elements, we're tumbling down the rabbit hole to uncover the strange and surprising science hidden within the classic story.We’ll find out how bizz

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