With the world looking likely to blow past the temperature targets laid out in the 2015 Paris climate agreement, a growing number of voices are saying that carbon removal technologies will be necessary if humanity is to achieve its long-term climate goals. If these approaches succeed, they could help nations and corporations to meet their climate commitments — and help the world to halt global warming. However, questions remain about the financial viability of these technologies, and whether the...
May 30, 2025•16 min
00:33 Was a boom in papers driven by AI? A spike in papers formulaically analysing a public data set has sparked worries that AI is being used to generate low quality and potentially misleading analyses. Nature: AI linked to explosion of low-quality biomedical research papers 08:07 Lenses that give humans infrared vision Researchers in China have created contact lenses that can allow humans to see infrared light, which could help with search and rescue missions, sending secret messages and even ...
May 28, 2025•20 min
00:45 Treating mosquitoes for malaria Researchers have developed two compounds that can kill malaria-causing parasites within mosquitoes, an approach they hope could help reduce transmission of the disease. The team showed that these compounds can be embedded into the plastics used to make bed nets, providing an alternative to insecticide-based malaria-control measures, which are losing efficacy in the face of increased resistance. Research article: Probst et al. 10:42 Research Highlights The su...
May 21, 2025•32 min
00:46 An antimatter delivery van takes its first road trip Researchers have developed a portable antimatter containment device and tested it by putting it in a truck and driving it around CERN. Their system could represent a big step forward in efforts to take particles made at CERN’s ‘antimatter factory’ and transport them to other labs, something currently impossible due to antimatter being destroyed upon contact with matter. The team showed the feasibility of their approach by using the syste...
May 14, 2025•31 min
In this Podcast Extra, we examine recent developments US National Science Foundation, which has seen significant numbers of research grants terminated. In addition, there have been freezes on funding for new grants and any additional money to existing ones. We also discuss US President Donald Trump’s proposed budget for fiscal year 2026, which calls for disproportionately large cuts to federal science funding. News: Exclusive: NSF stops awarding new grants and funding existing ones News: Trump p...
May 12, 2025•11 min
00:46 How fishing activity altered the migration pattern of Herring Selective fishing of older herring has resulted in a large shift in the migration pattern of these fish, according to new research. For years, herring have visited sites on the south coast of Norway to spawn, but in 2020 a rapid shift was seen, with the fish instead visiting areas hundreds of kilometres to the north. Researchers have concluded that too many older fish have been removed from these waters, preventing the knowledge...
May 07, 2025•38 min
In this episode: 00:46 What will be left of US science after Trump 2.0? 100 days into his term, President Donald Trump and his administration have already caused the biggest shakeup in modern scientific history, slashing funding, bringing large swathes of US research to a standstill and halting many clinical trials. But many fear these actions are just the beginning. We look at what the long-term impacts of these decisions might be for science in the United States and the world. Nature: Will US ...
Apr 30, 2025•28 min
Research shows that, over the past two decades, rates of mental illness have been increasing in adolescents in many countries. While some scientists point to soaring use of smartphones and social media as a key driver for this trend, others say the evidence does not show a large effect of these technologies on teenagers’ psychological health. At the heart of the dispute is a large, complex and often conflicting body of research that different researchers interpret in different ways. Th...
Apr 25, 2025•18 min
00:27 Five people see ‘olo’, a brand-new colour Using a laser system to activate specific eye cells, a team has allowed five study participants to perceive a vibrant blue-greenish hue well outside the natural range of colours seen by humans. Although the setup required to accomplish this feat is currently complicated, this finding could provide more understanding about how the brain perceives colour and could one day help boost the vision of people with colour blindness. Nature News: Brand...
Apr 23, 2025•20 min
Categorizing things is central to science. And there are dozens of systems scientists have created to name everything from the trenches on the sea bed to the stars in the sky. But names have consequences. What’s in a name is a series exploring naming in science and how names impact the world. We look at whether the system of naming species remains in step with society, how the names of diseases can create stigma, and how the names chosen by scientists can help, or hinder, communicati...
Apr 22, 2025•33 min
In this episode: 00:46 A potato pangenome Researchers have created a ‘pangenome’ containing the genomes of multiple potato types, something they believe can help make it easier to breed and sequence new varieties. The potato's complicated genetics has made it difficult to sequence the plant's genome, but improvements in technology have allowed the team to combine sequences, allowing them to look for subtle differences in between varieties. Research Article: Sun et al. 09:57 Research Highlights H...
Apr 16, 2025•33 min
00:46 Complete sequencing of ape genomes Researchers have sequenced the complete genomes of six ape species, helping uncover the evolutionary history of our closest relatives and offering insights into what makes humans human. The genomes of chimpanzee, bonobo, gorilla, Bornean orangutan, Sumatran orangutan and siamang have been sequenced end-to-end, filling in gaps that have long eluded researchers. Research Article: Yoo et al. News and Views: Complete ape genomes offer a close-up v...
Apr 09, 2025•30 min
Science writer and New York Times columnist Carl Zimmer's latest book Air-Borne: The Hidden History of the Life we Breathe dives into the invisible maelstrom of microbial life swirling in the air around us — examining how it helped shape our world, and the implications that breathing it in can have on human health. Carl joined us to discuss historical efforts to show that diseases could spread large distances through the air, the staunch resistance to this idea, and what ...
Apr 07, 2025•32 min
In this Podcast Extra, we hear the latest on how decisions by the Trump administration are affecting science in the US. Most recently, a purge of National Institutes of Health (NIH) leadership has seen the chiefs of multiple institutes and centres removed from their posts. Plus, after cancelling nearly all NIH projects studying transgender health, the White House has directed the agency to focus on studying “regret” after a person transitions to align their body with their gender identity. News:...
Apr 04, 2025•12 min
00:46 Millimetre-sized pacemaker fits inside syringe Researchers have developed a tiny, temporary pacemaker that dissolves when no longer needed, helping to overcome some of the challenges associated with current devices. Temporary pacemakers are often required after heart surgery but implanting them can require invasive procedures. This new device is injectable, requires no external power and is controlled using light shone through the skin. The tiny pacemaker has shown promise in animal and he...
Apr 02, 2025•38 min
With money pouring in and an unprecedented level of public attention and excitement, scientists are publishing a steady stream of papers on ways to measure how rapidly a person’s body is declining. However, there are mixed feelings of enthusiasm and apprehension among researchers about efforts to develop tests that measure the impact of ageing on the body, as they are often interpreted and presented without a full reckoning of the uncertainties that plague them. This is an au...
Mar 28, 2025•18 min
In this episode: 00:46 Newly discovered molecule shows potent antibiotic activity Researchers have identified a new molecule with antibiotic activity against a range of disease-causing bacteria, including those resistant to existing drugs. The new molecule — isolated from soil samples taken from a laboratory technician’s garden — is called lariocidin due to its lasso-shaped structure. The team say that in addition to its potent antibiotic activity, the molecule also shows low toxicity towards hu...
Mar 26, 2025•33 min
00:46 Microsatellite makes messaging secure A tiny satellite has enabled quantum-encrypted information to be sent between China and South Africa, the farthest distance yet achieved for quantum communication. Using a laser-based system, a team in the city of Hefei was able to beam a ‘secret key’ encoded in quantum states of photons, to their colleagues over 12,000 km away. This key allowed scrambled messages to be decrypted — including one containing a picture of the Great Wall of China. The team...
Mar 19, 2025•31 min
00:46 2D metals made using sapphire press Taking inspiration from industrial forging, researchers have demonstrated a way to squeeze molten metals into atomically-thin layers, creating relatively large flakes of 2D metals. Using a hydraulic press containing two sapphire anvils, a team was able to create sub-nanometer thick sheets of different metals — these sheets had diameters exceeding 0.1 mm, orders of magnitude larger than other methods have achieved. 2D metals have been theorized to possess...
Mar 12, 2025•33 min
00:46 Ancient humans made bone tools 1.5 million years ago A 1.5-million-year-old cache of animal-bone tools reveals that ancient humans systematically crafted with this material much earlier than previously thought. Researchers uncovered 27 bone artefacts in Tanzania honed into sharp tools almost 40 cm long. This discovery pushes back the dedicated manufacture of bone tools by around a million years and could have helped these early humans develop new kinds of technology. “This raises a lot of ...
Mar 05, 2025•30 min
Over the past two decades, research has emerged showing that opportunities for risky play are crucial for children's healthy physical, mental and emotional development. However, because play is inherently free-form it has been difficult to study. Now, scientists are using innovative approaches, including virtual reality, to probe the benefits of risky play, and how best to promote it. This is an audio version of our Feature: Why kids need to take more risks — science reveals the benefits o...
Feb 28, 2025•16 min
00:47 A ‘smart’ way to quickly detect cardiac arrest Google researchers have developed an AI for a smartwatch that will call for help if its wearer is having a cardiac arrest. Trained, in part, on data gained when patients had their hearts deliberately stopped during a medical procedure, the team’s machine learning algorithm can automatically detect the telltale signs of cardiac arrest. The team think this system could save lives, although more testing is required. "Our hope is that as these cap...
Feb 26, 2025•20 min
01:14 A simple switch to reduce racist ratings A study of almost 70,000 ratings showed that racial discrimination could be eliminated from an online platform by switching from a five-star rating system to a thumbs up or down. The platform connected customers to workers who performed home repair jobs, and prior to the shift people categorised by the study authors as ‘non-white’ had lower ratings and got paid less than their white counterparts. Through follow up studies the authors also showed tha...
Feb 19, 2025•32 min
In this episode: 00:45 An elusive, cosmic neutrino with a record-breaking energy An enormous array of detectors, deep under the Mediterranean Sea, has captured evidence of the highest-energy neutrino particle ever recorded, although researchers aren’t sure exactly where in the cosmos it originated. Calculations revealed this particle had over 30 times the energy of previously detected neutrinos. The team hopes that further study and future detections will help reveal the secrets of high-energy p...
Feb 12, 2025•35 min
In episode 2 of 'What's in a name' we look how choosing names can help, or hinder, attempts to communicate important messages. Categorizing things is central to science. And there are dozens of systems scientists have created to name everything from the trenches on the sea bed to the stars in the sky. But names have consequences. In our series What’s in a name we explore naming in science and how names impact the world — whether the system of naming species remains in step with society, how the ...
Feb 07, 2025•35 min
In this episode: 00:45 How arithmetic skills don’t transfer between applied and academic environments Mathematics skills learnt in real-world situations may not translate to the classroom and vice versa, according to a new study. A team surveyed children in India who work in markets, to see whether the skills they learnt there transferred to the classroom. While proficient at solving market-based arithmetic problems, they struggled to solve problems typically used in schools. The reverse was see...
Feb 05, 2025•35 min
The explosive improvement in artificial intelligence (AI) technology has largely been driven by making neural networks bigger and training them on more data. But experts suggest that the developers of these systems may soon run out of data to train their models. As a result, teams are taking new approaches, such as searching for other unconventional data sources, or generating new data to train their AIs. This is an audio version of our Feature: The AI revolution is running out of data. Wh...
Jan 31, 2025•17 min
In this episode: 00:46 Evidence of ancient brine reveals Bennu’s watery past Analysis of samples taken from the asteroid Bennu reveal the presence of organic compounds important for life, and that its parent asteroid likely contained salty, subsurface water. Collected by NASA’s OSIRIS-REx mission, these rocks and dust particles give insights into the chemistry of the early Solar System, and suggest that brines may have been an important place where pre-biotic molecules were formed. As brines are...
Jan 29, 2025•35 min
00:56 How the paths to professorship vary A huge analysis of hiring practices has revealed that criteria to get a promotion to full professorship is hugely variable around the world. The authors suggest that this variability results in researchers from countries that value one type of metric being locked out of professor positions in others. They hope that the database of hiring practices created in this study could help institutions adjust their hiring policies to create a more diverse science ...
Jan 22, 2025•33 min
00:46 Designing new antivenoms to treat snakebites Researchers have shown that machine learning can quickly design antivenoms that are effective against lethal snake-toxins, which they hope will help tackle a serious public health issue. Thousands of people die as a result of snakebites each year, but treatment options are limited, expensive and often difficult to access in the resource-poor settings where most bites occur. The computer-aided approach allowed researchers to design two proteins t...
Jan 15, 2025•34 min
