Science

First up on the podcast, Senior International Correspondent Richard Stone joins host Sarah Crespi to discuss the surprising commonalities between our immune systems and the tools bacteria use to defend themselves against viruses. These unexpected parallels have become rich ground for researchers investigating new molecular biology tools and model systems for immune research. Next on the show, Dominic Rohner, a professor of economics at the Geneva Graduate Institute and University of Lausanne, talks about the impact of cuts in international aid on violent conflict in Africa. His team harnessed the natural experiment of the U.S. Agency for International Development (USAID) work stoppage ordered by the Trump administration in early 2025 to find links between the sudden withdrawal of high levels of aid to increases in conflict. See also Science’s 2025 news series on the impact of USAID cuts on children. Finally, Valerie Thompson, Science’s books and media editor, interviews undergraduate student and author Theo Baker. Baker wrote the book How to Rule the World: An Education in Power at Stanford University, which covers the heavy involvement of Silicon Valley investors in Stanford University and his investigation of research misconduct by former Stanford President Marc Tessier-Lavigne. See the full review here. This week’s episode was produced with help from Podigy. About the Science Podcast Learn more about your ad choices. Visit megaphone.fm/adchoices

From chatting with a stranger on the train to reaching out to an old friend, everyday social interactions make us happier than we realize. Yet many people avoid these moments because they expect them to feel awkward or uncomfortable. Nicholas Epley, PhD, author of ‘A Little More Social,’ discusses why people consistently underestimate how much they’ll enjoy all kinds of social interactions; the psychology behind small talk and deep conversations; how technology is changing the way we connect; and why even brief moments of connection can improve our happiness, health and well-being. Learn more about your ad choices. Visit megaphone.fm/adchoices