Science Weekly
Alok Jha and the Guardian's science team bring you the best analysis and interviews from the worlds of science and technology.
The mystery of Europe’s heat death hotspot
Ian Sample hears from the Guardian’s Europe environment correspondent, Ajit Niranjan, about the reporting he has been doing for the launch of our new Europe edition. He talks about Osijek, a Croatian city that has the highest heat mortality rate in Europe … but no one knows why. Help support…
Will our bees survive the Asian hornet invasion?
Asian hornets have been spotted in the UK in record numbers this year, sparking concern about what their presence could mean for our native insects, and in particular bee populations. Madeleine Finlay speaks to ecologist Prof Juliet Osborne about why this species of hornet is so voracious, how European beekeepers…
Should American bully XLs be banned?
The UK home secretary, Suella Braverman, is pushing for a ban on American bully XL dogs after an attack on an 11-year-old girl in Birmingham. Madeleine Finlay hears from Guardian Midlands correspondent Jessica Murray about how this relatively new breed became so popular, and from bioethicist Jessica Pierce about whether…
Teen mental health and social media: what does the evidence tell us?
Ian Sample talks to Dr Amy Orben, who leads the digital mental health programme at the Medical Research Council’s cognition and brain sciences unit, about why the link between teen mental health and social media is so difficult to study, what the current evidence tells us and what advice she…
First African climate summit: can development and climate action coexist?
Madeleine Finlay hears from the Guardian’s east Africa global development correspondent, Caroline Kimeu, about the challenges and tensions at play at the inaugural climate summit. Help support our independent journalism at theguardian.com/sciencepod
Everything you need to know about the new Covid variant
The UK Health Security Agency has announced plans to bring forward its autumn Covid-19 vaccination programme, and scale up testing and surveillance, after the emergence of the BA.2.86 variant. Madeleine Finlay and Ian Sample discuss where current infection rates stand, the characteristics of the new variant, and how prepared the…
Why are scientists so excited about the vagus nerve? – podcast
Serving as a two-way ‘electrical superhighway’, the vagus nerve – which is actually a pair of nerves – allows for communication between the brain and the heart, lungs and abdominal organs. And because of this, it has been shown to help control things such as the heart rate, breathing, digestion…
Iris scans: proof of our humanity in an AI future, or marketing gimmick?
Madeleine Finlay speaks to the Guardian’s technology reporter Hibaq Farah about Worldcoin, a new cryptocurrency offering users tokens in exchange for a scan of their eyeballs. Farah explains what the motives behind the company are, why they think we all need to become ‘verified humans’, and how governments have responded…
The Y chromosome has finally been sequenced: here’s why it matters
Twenty years after the first pass at sequencing the entire human genome, the Y chromosome has finally been fully decoded. Madeleine Finlay speaks to Mark Jobling, professor of genetics at the University of Leicester, about why it has proved so tricky, the role of the Y chromosome in our bodies,…
Apple cider vinegar gummies: what’s the science behind the weight loss trend?
Apple cider vinegar is touted as a cure-all for everything from excess weight to digestion issues and blood sugar spikes. Supplement ‘gummies’ are the latest trend, billed as a tastier way to incorporate apple cider vinegar into our diets. Posts promoting them have been viewed millions of times on TikTok,…
Killing the Skydancer: episode three, An Open Secret
In this special Age of Extinction mini-series from Science Weekly, Guardian biodiversity reporter Phoebe Weston explores the illegal killing of birds of prey on grouse moors, and asks why it is so difficult to solve these crimes. In the third and final episode, Phoebe finds out more about the pressures…
Killing the Skydancer: episode 2, The Perfect Crime
In this special Age of Extinction mini-series from Science Weekly, Guardian biodiversity reporter Phoebe Weston explores the murky world of the illegal killing of birds of prey on grouse moors, and asks why it is so difficult to solve these crimes. In episode two, Phoebe speaks to the people trying…
Killing the Skydancer: episode one, Susie’s Chicks
In this special Age of Extinction mini-series from Science Weekly, Guardian biodiversity reporter Phoebe Weston explores the murky world of the illegal killing of birds of prey on grouse moors and asks why it is so difficult to solve these crimes. In episode one, Phoebe hears about the case of…
Summer picks: are we any closer to understanding long Covid?
In this episode from March 2023, Ian Sample hears from Scotland’s Astronomer Royal, Prof Catherine Heymans, about her experience of long Covid and how it has affected her life. He also speaks to Prof Danny Altmann, an immunologist at Imperial College London, about the scientific understanding of the condition, and…
Summer picks: should we ban artificial grass?
Installing artificial grass is becoming an increasingly popular way to achieve a neat, green lawn without much effort. But with environmental and potential health costs associated with plastic turf, many campaigners and gardeners would like to see it banned. In this episode from April 2023, Madeleine Finlay speaks to Guardian…
Summer picks: could the multiverse be real?
The film Everything Everywhere All at Once won the 2023 Academy Award for Best Picture. In this episode from March 2023, just before the Oscars, Ian Sample spoke to the theoretical physicist and philosopher Sean Carroll about why we seem to be drawn to the idea of multiple worlds, and…
Summer picks: what’s the reality behind the ‘Love Island smile’?
As the 10th series of the ITV show finishes, viewers may have noticed the perfectly straight, white teeth of the contestants. But are there risks associated with achieving a flawless smile? In this episode from January 2023, Madeleine Finlay speaks to dentist Paul Woodhouse about some of the dangers of…
Canadian lake could mark the start of new geological epoch
Plutonium from nuclear weapons, industrial waste, and human activity more broadly have left such a mark on the Earth that a new epoch called the Anthropocene has been proposed. Scientists are debating the specific geological site to define this epoch, with the frontrunner being an unassuming lake in Canada: Crawford…
What can doppelgangers tell us about nature v nurture?
The thing about doppelgangers is that despite looking almost identical, they aren’t biologically related. So, what makes them appear so similar? How do totally different people end up with the same face? And, can studying doppelgangers tell us anything about the age-old question of nature v nurture? Madeleine Finlay speaks…
Extreme heat: what does it do to us and how can we adapt?
As record temperatures spread across the world, Ian Sample sets out to understand what heat does to our bodies and what we can do to mitigate it without causing more damage to the environment. He visits Prof Lewis Halsey’s team at the University of Roehampton and learns first-hand about the…