Malaria inside mosquitoes, Aurora AI weather forecasting, and SI unit milestones discussed on Naked Scientists

Podcast snapshot

The podcast surveys a novel strategy for malaria control that targets the parasite in the mosquito, an AI driven weather forecasting advance, and a cancer therapy advancing two drug synergy, followed by a look back at the metre, kilogram and the second definitions. It weaves in the potential real world impact and safety considerations, with expert insights from Harvard and Cambridge researchers and a historical perspective on measurement units.

• Parasite-targeted malaria transmission blockade inside mosquitoes
• Aurora AI system promises faster, cheaper, desktop-level weather predictions
• Dual-drug approach for B cell acute lymphoblastic leukemia and plans for clinical testing
• 150 years of the SI units and how the second revolutionized measurement

Malaria inside the mosquito: a parasite-focused transmission break

The podcast opens with a discussion of a novel malaria control strategy that goes beyond killing the mosquito. Researchers identify compounds that stop the malaria parasite Plasmodium falciparum inside the mosquito after it lands on treated surfaces such as bed nets. By delivering antimalarial drugs via surfaces that mosquitoes contact, the approach aims to sterilize the parasite within minutes of exposure, effectively breaking the transmission chain. The team screened over 80 antimalarial drugs to find candidates that not only kill the parasite but also permeate the mosquito’s waxy leg cuticle, enabling uptake during contact. The exposure window modeled after the typical time a mosquito dwells on a treated bed net suggests that a few minutes of contact can suffice. The strategy promises long-lasting effects when applied to nets and walls, with bed nets offering years of protection compared to daily skin-applied treatments. Environmental safety is a key concern, but investigators report a wide therapeutic window, parasite-specific activity, and minimal off-target risk to other insects as they refine safety profiles. The work centers on Plasmodium falciparum, the species responsible for the vast majority of human malaria cases, with early work indicating potential activity across other Plasmodium species as well.

Aurora: Microsoft’s AI revolutionizing weather forecasts

The discussion transitions to Microsoft’s Aurora AI system, claimed to surpass current state-of-the-art weather forecasts by 50 to 80 percent in accuracy while reducing computational costs. The system learns broad patterns from millions of data points before specializing in tasks like hurricane tracking and air quality estimation. Aurora operates on consumer hardware, significantly cutting energy use compared with traditional supercomputers, and leverages a two-stage learning process: foundation pattern learning followed by task-specific fine-tuning, enabling knowledge transfer across atmospheric phenomena. Limitations in data-sparse regions are addressed by integrating traditional observational tools, and ensemble methods are used to quantify uncertainty and keep humans in the loop for decision making.

Cambridge leukemia study: a two-drug synergy

The podcast highlights a Cambridge Stem Cell Institute finding that crebbp mutations in B cell acute lymphoblastic leukemia confer chemotherapy resistance but render cancer cells highly sensitive to venetoclax. A second drug, inabrodib, can mimic the crebbp mutation’s effect, sensitizing a wider range of cancer subtypes to venetoclax and enabling a potential two-drug combination that could reduce chemotherapy doses and toxicity. Clinical trial funding is being sought to test this two-drug duo in adults and teenagers, potentially extending benefits to more patients and complementing existing immunotherapies.

150 years of SI units: a quiet revolution

The final section revisits the 1875 Meter Convention and the seven base SI units that describe the physical world. Alan Bruin from the National Physical Laboratory explains how timekeeping moved from celestial references to atomic references, with the cesium-133 atom providing the second as a stable reference. The talk traces the origin and evolution of the National Physical Laboratory, its role in setting standards, and historic innovations like the ACE computing engine and atomic clocks. The Open Day at the lab is highlighted as a way to engage the public and demonstrate the precision behind everyday technologies from smartphones to satellites. A reflective thread runs through how standardized units have reduced waste and error in engineering and science and how ongoing safety and maintenance keep these standards robust in a changing world. The segment ends with a nod to ongoing public engagement and the Naked Scientists forum for questions and discussion.