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Podcast Overview: Red‑Light Masks and Ageing ClaimsThe Guardian’s latest science podcast asks the question, “Is it true that red‑light therapy masks prevent wrinkles?” It invites listeners to explore the evidence behind a popular anti‑ageing gadget.What the Episode CoversIntroduction to red‑light therapy and its purported skin‑benefits.Interviews with dermatologists and researchers discussing clinical findings.Consumer perspectives on the rise of at‑home light‑mask devices.Current Evidence LandscapeWhile some small studies suggest modest improvements in skin texture, the podcast notes the lack of large‑scale, peer‑reviewed trials confirming long‑term wrinkle reduction.Implications for Consumers and the Beauty IndustryThe discussion highlights a growing market for home‑use light devices, prompting regulators to consider clearer labelling and efficacy standards.Looking Ahead: Research and RegulationFuture episodes may track upcoming clinical trials and potential guidance from health authorities on the safe use of red‑light masks.

Podcast Overview and Core PremiseThe Guardian’s latest audio feature dives into the scientific side of the 2026 World Cup, exploring how extreme temperatures, political narratives, and video‑assistant‑referee (VAR) technology intersect on the global stage.Heatstroke Risks for Players and FansExperts discuss how high‑temperature venues increase the likelihood of heat‑related illnesses, outlining preventive measures for athletes and spectators alike.Sports Washing: Politics Meets the PitchThe episode analyses how host nations use the tournament to improve international image, a practice known as sports washing, and its implications for global perception.VAR Psychology: Decision‑Making Under ScrutinyPsychologists explain how referees and players cope with the pressure of VAR interventions, shedding light on the mental dynamics that shape match outcomes.Where to Listen and Support Further CoverageListeners can subscribe to Football Weekly for ongoing World Cup analysis and support the Guardian’s science podcast at theguardian.com/sciencepod.

The Departure of a Key Tech Voice in GovernmentFormer tech executive and venture capitalist Sriram Krishnan is set to leave his role as senior policy advisor on artificial intelligence at the White House at the end of June. In a post on X, Krishnan expressed gratitude for the opportunity to serve under President Donald Trump, stating, "Without his leadership, we would not be leading in the AI race."The Tech Executive's Government JourneyKrishnan joined the Trump administration as part of a trend of tech industry figures taking roles in the second Trump administration. Prior to his government position, Krishnan led product teams at major tech companies including Microsoft, Twitter, Yahoo, Facebook, and Snap. He was most recently a partner at Andreessen Horowitz, a venture firm whose founders threw their support behind Trump during the 2024 election.AI Policy Accomplishments During TenureDuring his time at the White House, Krishnan highlighted several key accomplishments, most notably the administration's AI Action Plan. This plan prioritized data center construction over regulation and safety measures. Under his influence, President Trump signed several executive orders related to artificial intelligence, including one that seeks to challenge state-level AI regulations and another focused on oversight that was delayed and narrowed after industry pushback.Collaboration with David SacksIn his farewell message, Krishnan specifically mentioned David Sacks, the investor and podcaster who stepped down as AI and crypto czar earlier this year and became co-chair of the President's Council of Advisors on Science and Technology. Krishnan noted that Sacks "continuing advocacy for America winning on AI has been and continues to be crucial" during his time in government.Future Plans in AI Policy InfluenceAccording to The Washington Post, Krishnan is planning to start an outside institution that will still allow him to play a role in influencing Trump's AI policy. In his post, he indicated his next steps would involve "building institutions" that tackle big challenges for "America and its allies." Specifically, he mentioned issues such as energy, data centers, and creating "a clear path for Americans to experience the benefits of AI."

The Government's Response to Misinformation CrisesThe UK government is considering fresh action to halt the spread of misinformation during public crises, Technology Secretary Liz Kendall has announced. She emphasized that she will not be "bullied off" Elon Musk's X platform, despite concerns about the role of social media in times of unrest.Kendall expressed being "very concerned" about social media platforms' role during crises, stating: "I definitely think, particularly during moments of crisis and disorder and when public safety is important, we need to look at what more we can do."Southampton Riots and Misinformation AmplificationThe announcement follows rioting in Southampton over the police response to the fatal stabbing of Henry Nowak, a case about which Musk has repeatedly posted. The government's concerns are rooted in real-world events where misinformation has fueled public disorder.A Commons science, innovation and technology committee report from last year highlighted how "misleading and hateful messaging proliferated rapidly online, amplified by the recommendation algorithms of social media companies" during the 2024 riots following the murder of three girls in Southport.The Scale of Misinformation ReachThe impact of unchecked misinformation is demonstrated by Musk's activity on X. His post sharing comments from far-right MP Rupert Lowe about the Nowak case, simply captioned "RAGE," was viewed more than 25 million times. In contrast, Kendall's own post about innovation funding at Liverpool University received only 5,500 views and 8 shares.Analysis by Amnesty International claimed X's algorithms contributed to what it called a "staggering amplification of hate" during the 2024 riots, demonstrating the disproportionate reach of problematic content compared to official information.Regulatory Gaps and Political ResponseThe government's push comes amid criticism that the Online Safety Act is "woefully inadequate and riddled with regulatory gaps" according to Chi Onwurah, chair of the Commons committee. Despite the committee's recommendations for improvement being largely rejected, Kendall has acknowledged that the eight-year development of the act was "too slow" for rapidly evolving technology.Prime Minister Keir Starmer has accused Musk of "interfering in our politics," while Labour MP Jess Asato is taking legal action against Musk's xAI company over demeaning sexualized material created by its Grok AI tool that spread across X earlier this year.Future Regulatory ApproachesThe government is exploring multiple approaches to address misinformation, including "boosting trusted sources of information" and enabling users to "reset their algorithms." Kendall specifically mentioned looking at ways to make it "much easier for people to say 'let's have a reset'" when encountering problematic content.Media regulator Ofcom is expected to announce more details this month regarding crisis response protocols, following consultations on implementing the committee's recommendations. The government appears to be balancing the need for regulation with maintaining a presence on platforms where misinformation spreads, as Kendall stated: "I'm going to get the government's message out; hopefully to some people who want to hear it and definitely to those who don't."

The Lead Doctors, scientists, and researchers shared new research about ways to tackle cancer at the 2026 American Society of Clinical Oncology (Asco) annual meeting, the world's largest cancer conference. Breakthroughs in Cancer Treatment The event in Chicago, attended by 40,000 health professionals, featured more than 200 sessions and 2,700 poster presentations on this year's theme, “the science and practice of translation: improving cancer outcomes worldwide”. Smart Drugs in Cancer Treatment Researchers have developed a smart drug that stops cancer cells hiding. The experimental tablet, GRWD5769, can help shrink tumours by at least 30% in six of the world’s most common forms of the disease, delegates in Chicago were told. 26 of 83 patients with cervical, bladder, liver, bowel, lung or head and neck cancers who were given GRWD5769 alongside cemiplimab had tumour reductions of at least 30%. 15 had tumour reductions of at least 30%. A Daily Pill for Pancreatic Cancer A pill that doubles survival time in patients with pancreatic cancer was presented at the conference. In a trial of 500 patients, all of whom had pancreatic cancer that had spread, the pill, daraxonrasib, doubled survival time, with fewer side-effects compared with chemotherapy. Patients who took the drug lived substantially longer, for an average of 13.2 months, compared with 6.6 to 6.7 months for patients who had chemotherapy. Safely Skipping Some Treatments Some patients can safely skip some treatments, according to research presented at the conference. A genomic test could pave the way for a new era of personalised medicine, enabling doctors to determine which patients can safely skip chemotherapy. The Optima trial, led by University College London, followed 4,000 patients with newly diagnosed breast cancer in the UK, Norway, Sweden, Australia, New Zealand and Thailand. Those with a low score on the genomic test could be treated safely with hormone therapy alone. The Future of Cancer Treatment Urgent action is required to cope with rising cancer cases. The world faces a cancer workforce crisis, experts said, with a shortage of 100 million staff expected by 2050 when 100,000 people will be being diagnosed every day. A 21% increase in cancer incidence is predicted, according to a report presented at the conference. The rate is set to rise from 165 per 100,000 people in 2025 to 200 per 100,000 in 2050.

The Bridge Between Art and ScienceWhy do we find things beautiful? More precisely, why do some paintings of coloured dots in rippling patterns inspire in me something like revelation? The idea that beauty is the feeling you get when encountering truth is unfashionable in the arts, but lingers in the sciences. The physicist Paul Dirac once proposed that it is more important that a formula is beautiful than that it can be proven: when a perfectly beautiful theory produces results that cannot be real, he argued, then we should not discard the theory but reconsider what is real.Since the 1970s, Terry Winters has been rebuilding that bridge between art and science. Taking inspiration from disciplines including botany – his early paintings, particularly, evoke sprouting pods and tangled roots – engineering, computer modelling and cybernetics, his paintings might be understood as diagrammatic approximations of the patterns that govern everything from the division of cells to the constellation of stars. If every era has to renew its standards of beauty to reflect new understandings of how the world is constructed, then Winters comes as close to providing that model as any living painter.Mathematical Patterns in Visual ArtThese eight new works take their titles from the language of geometry and mathematics: Area, Array, Field, Locus, Point, Scope, Sequence and Set. Each is composed of overlapping patterns that pull each other out of shape according to invisible laws of attraction and repulsion. Field is indicative: on a sooty pink ground, a dense grid of dusty blue cells bends inwards like a trampoline beneath a bowling ball, while an intersecting arrangement of larger circles swells outwards. The disorienting effect of this push-pull is exaggerated by an optical illusion, created by ragged phosphorescent orange haloes around the blue circles, that makes them appear to be craters sunk into the crust of paint. You have to walk up to the surface to be reassured that it is flat.Point shows a teeming landscape of cells bulging outwards at the centre, as if a scum of frogspawn had been skimmed off a pond and placed under a paperweight microscope. In Sequence, a storm of pink interference skims through a yellow circle split like a brain into hemispheres, while a nebulous weather system sweeps in from the right. In Scope, vaguely symbolic arrangements of freshwater blue and desert orange nodules move across the familiar circle-within-a-square geometry of Leonardo's Vitruvian Man. Where that famous demonstration of sacred geometries exudes stillness and calm, the systems that run through Winters' worlds are wild and strange. Here, as much importance is given to the subjective factors of perception and consciousness as the objective principles of logic and proportion.Optical Illusions and Sensory ExperienceAll of this should not distract from the pure sensory pleasure afforded by these pictures. In Locus, another optical illusion seems to lift the red edge of the painting off the canvas like a clumsy wooden frame, squeezing the pockmarked sphere at its centre so that it balloons outwards, threatening to burst. The same cadmium red, so sandy that the pigment seems barely to have been suspended in oil, turns carmine pockets into rock formations that climb off the surface of Set. These sleights of hand evoke the more secular movement of op art, in which patterns are manipulated to exploit the idiosyncrasies of human perception rather than to uncover deeper truths. Which begs the question: is this all just a conjuring trick?Rediscovering the Renaissance ApproachThere is something magical about these works. Even though Winters is generally credited with having extended the lineage of modernist American painting into the present, his practice is in this sense pre-modern. In its rejection of the idea that art should be separated from science, it resembles the Renaissance attitude according to which painting is no less a tool for understanding the world than mathematics, and magic is just the name for things we don't yet understand. His commitment to synthesising diverse spheres of knowledge, his alchemist's commitment to materials, and his sheer technical ability certainly mark him out in a scene recently overwhelmed by chancers and charlatans, bandwagoners and snake-oil salesmen. That his work is enjoying a revival might be taken as an encouraging sign.Beauty as a Path to TruthDirac, incidentally, was proved right. He formulated a theory that was so beautiful it couldn't possibly be wrong, even though it implied the existence of phenomena that everyone agreed must be impossible. He stood by it, and a few years later, someone else discovered anti-matter. Winters' paintings likewise offer a flash of those secret patterns that underpin the physical world, and which science has yet to illuminate. Which is to say, they're beautiful.Exhibition DetailsTerry Winters: Along the River is at Modern Art, London, until 11 July

The Pond Picasso's Environmental JourneyIn a boggy field in Somerset, Shaun Hancox operates an orange and black excavator, rhythmically removing lumpy clay soil and sculpting it into brown banks. What appears as a scar of bare earth on what was once green pasture will soon transform into a thriving freshwater ecosystem once rain fills the newly created depressions. This is the work of "the Picasso of ponds," a man who has transitioned from shaping golf courses to creating vital wildlife habitats across Britain.The Art and Science of Pond Creation"There's a lot more thought that goes into it than digging a hole," explains Hancox of Creative Wetlands. His background in golf course construction has given him unique insights into water movement and landscape design. "A golf ball rolls very much how water moves. When you're putting in a wildlife pond, you look at the landscape and give your pond the best chance of holding water and doing what it should do." The shapes of his ponds are "almost golf course bunkers but in a more rustic, natural way." At Heal Somerset, a 185-hectare former dairy farm being rewilded, Hancox is digging four new ponds, including one double-bowled pond 30 meters in diameter specifically for great-crested newts.The Decline of Britain's Freshwater HabitatsBritain has lost at least 400,000 ponds over the past century, according to the Freshwater Habitats Trust. A similar number remain, but many are overgrown, degraded, or affected by nutrient pollution. "Everyone realises we're in a sorry state with freshwater and it needs to be addressed," says Hancox. This decline has had devastating consequences for aquatic and semi-aquatic species that depend on these freshwater ecosystems for breeding, feeding, and shelter.Transforming Landscapes for WildlifeThe ponds created by Hancox and his team are specifically designed to maximize their ecological impact. Crucially, these new ponds are not connected to any river system, which can wash nutrient-rich or polluted water into them. Instead, they are charged by clean rainwater or clean groundwater, enabling more delicate aquatic plants to thrive. Within a year of being created, the ponds fill with aquatic life, including damselflies and dragonflies, and provide food and shelter for birds, from moorhens to house martins, who feed on the insects and use the pond-side mud to build nests.The Future of Freshwater ConservationInitiatives like the Newt Conservation Partnership, a coalition of the Freshwater Habitats Trust and the Amphibian and Reptile Conservation Trust, are working to ensure these habitats are maintained long-term. The partnership operates across 70 local authorities in England and ensures that any new pond habitat is maintained for 25 years, with ponds inspected and landowners receiving annual payments to manage them. "It guarantees that they will be suitable for newts in 25 years' time," says Pete Case of the Newt Conservation Partnership. "When it comes to newt conservation, everyone focuses on making a pond, but newts spend two-thirds of their life on land. If you don't get that bit right, they aren't going to do so well." This comprehensive approach to habitat creation and management represents a promising model for future conservation efforts across Britain and beyond.

Breakthrough: Baking Sourdough with 5,000‑Year‑Old YeastScientists have successfully baked a sourdough loaf using yeast strains isolated from the 5,000‑year‑old Alpine mummy known as Ötzi the Iceman. The experiment demonstrates that ancient microorganisms can still perform modern fermentation processes.How the Ancient Yeast Was Extracted and TestedResearchers from Eurac Research's Institute for Mummy Studies carefully sampled the microbial layer on Ötzi’s skin and clothing, then cultured the yeast under cold‑room conditions before introducing it into a standard sourdough starter.Source: Ötzi’s preserved remains, discovered 1991 near the Italy‑Austria border.Age of yeast: ~5,000 years.Lead microbiologist: Mohamed Sarhan.Fermentation time: dough rose in 24 hours, comparable to modern baker’s yeast.Scientific Metrics: Fermentation Times and ViabilityThe ancient yeast produced a normal rise within 24 hours, indicating viable metabolic activity despite millennia of dormancy. No quantitative yield data were released, but the rapid leavening suggests comparable enzymatic efficiency to contemporary strains.Implications for Food Science and ArchaeologyThis result bridges paleomicrobiology and culinary science, offering a tangible link to prehistoric food practices. It also opens avenues for studying ancient microbial genetics, which could reveal lost fermentation traits.Next Steps: Brewing Beer and Expanding Ancient Microbe ResearchThe team plans to collaborate with German brewer Weihenstephan to test the yeast’s suitability for beer production. Further investigations will assess the genetic profile of the strain and explore other potential applications in food and biotechnology.

The Threat to Ocean Monitoring The Trump administration's plan to dismantle an ocean observation system vital to understanding the climate crisis and marine ecosystems would “severely degrade” the accuracy of weather predictions and El Niño forecasts, with economic consequences for the US, European and American scientists have warned. The Ocean Observatories Initiative The Ocean Observatories Initiative (OOI), run by the US National Science Foundation, is a vast network of seafloor systems, underwater gliders and moored surface platforms that feeds data to researchers, policymakers, educators and mariners worldwide. The initiative, which covers both US coastlines and extends into the North Atlantic and Southern Ocean, has been used to study marine heatwaves, harmful algal blooms, subduction zone earthquakes, ocean acidification and fisheries variability. The Data Analysis Decommissioning the US system, which plays a major part in a global ocean observation network, would lead to a massive increase in error in the annual estimates of ocean heating rates, according to research published last month. Removing US observations alone would produce a 163% increase in error for annual ocean heating rates. The Impact Analysis The loss of US observations, in a year predicted to be an El Niño year, with “supercharged” weather extremes, could also “lose the ability to see it coming clearly to act in time”. The stakes are concrete: farmers in the US and across South America use El Niño forecasts to decide what to plant and when – whether to expect drought or flooding shapes every agricultural decision months in advance. The Prediction “The US government wants to save less than a billion in sensors, which are the eyes and ears of the ocean” said Abrahams. “We have hundreds of billions in climate costs per year. The cost of the observation system is a fraction of the climate costs from hurricanes and storms that hit the US. ” The system, is, Abraham said is “quite an inexpensive way to reduce climate-related costs”.