The Naked Scientists: Space Race, Newborn Screening App, AI Dangers, and a Welsh Fossil Find

Episode snapshot

The Naked Scientists examine four major science stories this week. First, the evolving space race between China and the United States and its implications for satellites and potential conflict in space. Then a midwifery innovation, an iOS and Android app designed to assist healthcare practitioners with newborn screening checks. The show also visits the risks and governance of artificial intelligence, featuring insights from a leading AI expert and a discussion about regulatory approaches. Finally, researchers in Wales reveal one of the world’s most significant fossil deposits, preserved soft-bodied animals from deep in the Cambrian period, alongside reflections on evolution and public engagement. The episode closes with a question about how quickly evolution happens and what drives its pace.

• Space geopolitics and the fate of satellites
• Newborn physical examination screening app
• AI risks including bias, misinformation, and explainability
• Remarkable fossil preservation from Wales
• Evolution tempos and environmental factors

Space geopolitics and the space domain

The podcast opens with a discussion of the competition between the United States and China in space. A top secret CIA report claiming that China is developing cyber weapons and attack satellites is analyzed by Isabel Hilton, a respected China expert, at Queen's College, Cambridge. The guests describe space as a potential warfare domain given modern life that depends on space technology. They acknowledge that the United States remains ahead in space capabilities, with broader international partnerships, and that China’s investments are growing but not yet turning into a rapid overtaking of the US. The conversation explores strategic aims, such as China’s messaging about returning to the Moon to advance national prestige and capacity, and Taiwan as a focal point in broader geopolitical calculus. The risks of space conflict, including the possibility of destroying satellites, are framed as high stakes with unpredictable consequences. The discussion also touches on the role of Taiwan’s semiconductor industry, especially TSMC, and how control of advanced microchips intersects with security and global economies. The guests emphasize the need for cautious, multi-lateral approaches to avoid escalations that could threaten civil society dependent on space infrastructure.

Newborn screening app in healthcare

The program shifts to health innovation with Lindsay Rose describing a new app for newborn screening checks at 72 hours and six weeks after birth. The Newborn Infant Physical Examination Textbook in a Pocket, or NYPI, is designed as a pocket resource for midwives and healthcare professionals. It focuses on hip, heart, eyes, and testes examinations, offering dynamic content like heart sounds and annotated diagrams, designed to be accessible on mobile devices and desktops. The app links to guidelines from national screening committees and aims to enable parents to participate in the examination process by showing what clinicians are listening for. Rose explains that early detection and intervention can prevent later problems and that the app is now being adopted by universities and midwives across the country, with international collaborations in Sweden and potential use in low-resource settings. The platform is positioned as a modern equivalent of the old pocket reference books used by clinicians, now powered by digital technology and real-time guidelines updates.

AI risks and governance

The podcast then moves into AI with an interview featuring Josh Coles from the University of Oxford, discussing Geoffrey Hinton’s departure from Google to warn about AI risks. The conversation covers evolving timescales in AI research, the near-term risks of bias and disinformation, and the challenges of explainability. The participants stress that AI systems can imitate understanding and natural language but remain tools without true comprehension, which raises concerns about decision making in health, justice, and everyday life. They discuss regulatory approaches, including the European Union’s AI act, and consider how governance could shape responsible deployment while preserving human autonomy and creativity. The dialogue also contemplates the risks of over-reliance on AI in creative and professional domains and the potential for AI to promote conformity or stifle novel ideas. The discussion closes with reflections on the importance of safeguarding truth, freedom, and critical thinking as AI becomes more integrated into society.

Fossil discovery in Wales

The program returns to science with a report from Welsh researchers Joe Botting and Lucy Muir, who describe a fossil site near their home that preserves soft-bodied organisms in exquisite detail dating to about 462 million years ago. They explain the significance of preserving soft tissues at this age, a rare window into early ecosystems beyond the shelly fossils. The assemblage includes diverse tiny creatures and even brain tissue in minute arthropods, with preservation at micron-scale detail. The pair recounts crowdfunding to acquire high-quality microscopes and cameras, allowing them to publish papers and share their discoveries with the broader scientific community. The site is said to illuminate the Cambrian period, bridging gaps in knowledge about soft-bodied life in early oceans, and the questions about juvenile vs adult specimens and how the ecosystem functioned on a volcanic island complex are explored as researchers prepare further work and future fossil collections.

Question of the Week: Evolution pace

The final segment features a discussion on the time scales of evolution. The question asks how many generations are needed for adaptations to become the norm and what environmental or biological factors influence those timescales. Andy Fogo from the University of Plymouth explains that mutations can occur on short timescales, even seconds, yet the emergence of new species often takes much longer, from weeks in controlled experiments to millions of years in nature. Smaller organisms with rapid generation turnover tend to evolve faster, while environmental conditions, such as higher radiation or temperature, can increase mutation rates and the pace of evolution. The discussion notes that tropical rainforests are expected to host rapid evolutionary dynamics due to their biodiversity and intense selective pressures. The episode ends with a friendly invitation for listeners to submit questions to Chris Naked Scientist, continuing the show’s tradition of public engagement with science.

Conclusion

Across these stories, the episode highlights space security, digital health innovation, AI risk governance, remarkable fossil preservation, and fundamental questions about the tempo of evolution, illustrating the breadth of science and the role of public understanding in advancing knowledge.