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The World, the Universe and Us

From the evolution of intelligent life, to the mysteries of consciousness; from the threat of the climate crisis to the search for dark matter,The world, the universe and usis your essential weekly dose of science and wonder in an uncertain world. Hosted by journalists Dr Rowan Hooper and Dr Penny Sarchet and joined each week by expert scientists in the field, the show draws onNew Scientist’s unparalleled depth of reporting to put the stories that matter into context. Feed your curiosity with the

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All Episodes

12:11

Secrets of the World’s Longest-Lived Animals

The World, the Universe and Us ·

2026/10/09

Episode 404Jonathan the tortoise was born in the year 1832, on a beach in the Seychelles. 194 years later and Jonathan is still alive, celebrating his birthday. How exactly has he managed to survive for so long? Jonathan is a giant tortoise and the world’s oldest known land animal. His genome has now been sequenced, revealing intriguing hints about longevity. And it seems the key to a long life is all down to mitochondrial function. From Greenland Sharks to the enigmatic quahog, this also seems

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27:39

New Fossil Shows Birds Weren’t the Only Dinosaurs to...

The World, the Universe and Us ·

2026/10/02

Episode 403A new species of feathered dinosaur has been discovered - and it looks like a supercharged magpie with teeth. Fossil evidence and an artist’s reconstruction show the dinosaur looks remarkably like a bird - yet it’s not actually an ancestor of modern birds. Over 100 million years old, Norellraptor barsboldi is named after two famous palaeontologists - one of whom taught palaeontologist Steve Brusatte. Steve is the author of The Story of Birds and joins the team to discuss this

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21:31

This El Niño Is About To Cause a Global Catastrophe

The World, the Universe and Us ·

2026/09/25

Episode 402The current El Niño is shaping up to cause catastrophe on a global scale. Global temperatures are being pushed up, unleashing extreme weather which could devastate ecosystems. The heat alone is expected to kill half a million people over the next five months. Sea-surface temperatures are expected to climb 4°C above average in parts of the Pacific - and it’s becoming clear this is an issue that affects us all. From extreme heat in some places to heavy rainfall in others, many countries

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48:43

How to Be Hopeful: Caitlin Moran and New Scientist...

The World, the Universe and Us ·

2026/09/21

Episode 401Anxiety is everywhere. Climate change, political turmoil and a constant stream of alarming headlines can make optimism feel impossible. But to be hopeful you don’t need to ignore reality. What if it’s about paying attention to the breakthroughs that are already changing the world? In this special episode Penny Sarchet and Rowan Hooper are joined by bestselling author Caitlin Moran, who spent a year chasing hope. Prompted by her new book How to Be Hopeful, the New Scientist team shares

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31:03

THIS Is What You Need To Worry About With The Rise Of AI

The World, the Universe and Us ·

2026/09/18

Episode 400Should we really be afraid of AI? Many headline statements from the likes of Anthrophic, OpenAI and even the King are raising alarm bells over the threat of AI to humanity. AI companies are even calling to be more highly regulated. But does that mean the threats are worth considering - or are there ulterior motives? Among the apocalyptic or disastrous ways it could go wrong, there are genuine issues we should be thinking about today. Alignment is one of those - how closely AI aligns

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23:17

The Mystery of Childbirth Is Finally Being Unravelled

The World, the Universe and Us ·

2026/09/16

Episode 399Some aspects of childbirth have remained surprisingly mysterious - and scientists haven’t been able to agree on what actually kicks off the labour process. But they’ve finally worked out what’s going on - and the discovery could turn birth into a much more predictable occasion. The labour process in humans is much more complex than in other mammals. But researchers have now worked out the driving force that kicks it all off is the immune system - a special type of inflammatory

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32:16

AI Just Solved One of the Hardest Problems in...

The World, the Universe and Us ·

2026/09/11

Episode 398OpenAI says it has just solved one of the hardest problems in mathematics. The Navier-Stokes existence and smoothness problem has been unsolved for more than 200 years. Now AI has cracked it, some claim we’ve finally reached “AGI” - artificial general intelligence. Navier-Stokes is one of the Millennium Prize Problems, chosen for being famously challenging. And as OpenAI sets its sights on solving more of these problems, what does it mean for the future of mathematics and even for the

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23:54

New Discovery Reveals the Secret Lives of Denisovans

The World, the Universe and Us ·

2026/09/10

Episode 397The first evidence has been discovered that Denisovans lived in south-west China. This ancient species of human spent over 100,000 years in the region and left behind incredible artefacts that tell us how they lived. 64,000 fragments of bone have been discovered from Bianfu Cave in Yunnan province. And the site tells us a lot about the food they ate and the animals they hunted - including rhinoceroses, hyenas and prime-age deers. As we discover an increasingly sophisticated culture in

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23:28

The Nepal Disaster: How Climate Change is Reshaping...

The World, the Universe and Us ·

2026/09/04

Episode 396A devastating climate disaster has killed at least 1,200 people in Nepal. A mass of ice and rock came crashing down off the Langtang mountain into the valley below. The climate crisis has made events like this much more likely. This is just one of many retreating glaciers. We’re also on track for a record year of ice-loss in the European alps. As the world is reshaped before our eyes, what does this mean for the planet - and the 1.9 billion people who live downstream of glacier ice

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14:54

Scientists Find Best Evidence Yet For Dark Matter

The World, the Universe and Us ·

2026/09/03

Episode 395 Dark matter particles may have finally been spotted for the first time. LUX-ZEPLIN is the most sensitive dark matter detector on Earth - and what it’s discovered has the potential, if confirmed, to shake up all of physics. Despite making up about 85 per cent of the universe, dark matter has been notoriously difficult to spot. WIMPs, or weakly-interacting massive particles, are the leading theory to explain dark matter. That’s what this new, powerful detector has been built to search

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13:01

Why Humans Like Bigger Breasts - And a New Way to...

The World, the Universe and Us ·

2026/08/25

Episode 393A new technique using a woman’s own fat cells has been used to reconstruct her breast without silicone implants. By injecting her own tissue into a dissolving scaffold, it’s hoped this technique will make breast augmentation safer. Traditional plastic surgery involves silicone or saline, which can cause health issues like breast implant illness and even cancer. And they typically only last 10-20 years before needing to be removed. Penny Sarchet speaks to Australia reporter Alice Klein

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33:45

ADHD Is Not a Myth - What the Science Really Says

The World, the Universe and Us ·

2026/08/21

Episode 394A controversial TV show has suggested ADHD is a myth - a largely made up condition that is really just a “social construct”. But the science just doesn’t back this up. Decades of research prove ADHD is a real condition that impacts lives - and often needs treatment, which saves lives. But at a time when diagnoses are rising, people are wondering what’s causing the increase. Are we overdiagnosing the condition? Are we medicalising normal behaviour? That’s what this documentary might

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16:54

Wildfires Changed Human Evolution - Is It Happening...

The World, the Universe and Us ·

2026/08/17

Episode 392 Ancient wildfires may have shaped the course of human evolution. A reconstruction of the environment in East Africa 1.75 million years ago suggests a particularly volatile period of climate change made our species adapt rapidly. Climate swings may have led our species to develop sophisticated tools. Ancient hominins may have also learnt to control fire thanks to frequent wildfires during this period. As wildfires become increasingly common, currently devastating parts of Europe

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12:28

New Treatment Saves Children With Terminal Brain Cancer

The World, the Universe and Us ·

2026/08/11

Episode 391Brain tumours are the most common and most deadly form of solid tumours in children. But a brand new kind of immunotherapy has shown incredible promise, saving four terminally ill children. By using a child’s own immune cells, this new treatment seems to work better than existing immunotherapies and causes fewer adverse side effects. Although it saved just 4 out of 33 participants, it’s still encouraging and researchers hope to continue trials. Join James Woodford and Alice Klein to

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49:32

Latitude Special: Why Festivals Make You Live Longer;...

The World, the Universe and Us ·

2026/08/05

Episode 390In a special episode recorded live at Latitude Festival in England, we open with the finding that orcas in the Gulf of California have been making fish explode like piñatas. Sunfish are too large for orcas to get their teeth around, but they’ve been seen working together to tackle them - another amazing display of their ability to coordinate. We also discuss a surprising new way to clear proteins linked to Alzheimer’s disease from the brain. An early-stage experiment shows that

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21:40

Climate 2026: Record Heat, Tens of Thousands Dead,...

The World, the Universe and Us ·

2026/07/31

Episode 389Europe is burning through another summer of extreme heat. Temperatures are soaring across the continent, wildfires are forcing mass evacuations in France and Spain, and scientists warn that heatwaves are becoming more frequent, more intense and longer-lasting as the climate warms. The fires are changing too. Hotter, drier conditions are creating larger and more destructive wildfires. Some are even generating their own weather systems, pyrocumulonimbus thunderstorms, in regions we’d

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16:56

Scientists Pioneer Surgical Methods for Human Head...

The World, the Universe and Us ·

2026/07/27

Episode 388Two extraordinary breakthroughs have been made in transplant surgery. First, scientists have found a way of keeping human eyes alive for up to 10 hours after death, opening up the possibility of eye transplants in the future. And in a second controversial surgery, another team has managed to restore severed spinal cords in pigs, allowing them to walk again after being paralysed. While it’s hoped this will eventually allow people with spinal injuries to walk again, one of the scientists

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11:00

The Most Promising Alien Planet We've Ever Found?

The World, the Universe and Us ·

2026/07/20

Episode 387 Two big interstellar discoveries have hit the headlines. One is the discovery of the first atmosphere ever found on a small, rocky exoplanet that could host alien life. The planet LHS 1140b is about 50 light years from Earth and sits in the “Goldlocks” zone, meaning it’s close enough to its star to be habitable. So what do we know about its atmosphere – and could it be just like Earth? The second story is of sugar molecules discovered in interstellar space for the first time –

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20:09

Climate Crisis Is Triggering Global Food Shortages -...

The World, the Universe and Us ·

2026/07/17

Episode 386 The climate crisis is having a significant impact on yields of crucial food crops. Losses of maize, wheat and soybeans alone are costing $20 billion a year due to heat and drought. New estimates expect this to rise to $160 billion per year by 2100 - although that could be an underestimate. While this means food prices will keep on rising in developed countries, the majority of the population in the world’s least developed regions work in farming, so crop losses have the potential to

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31:38

7 Essential Lessons We Can Learn From Homer’s Odyssey

The World, the Universe and Us ·

2026/07/13

Episode 385 What can Homer’s Odyssey teach us about psychology and human nature? Locked up in this 2,500-year-old text are a host of profound lessons and ancient wisdom. In her new book The Odyssey Mindset, Oxford classicist and clinical psychologist Sam Akbar draws on seven essential lessons from this classic piece of Greek literature. She showcases what it teaches us about issues like grief, ego and dealing with trauma - translating The Odyssey into a toolkit for modern life. The book is out

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