NSF’s Discovery Files Podcast

Horses In the American West

Horses evolved in North America, but ancient populations died off during the last ice age. We are joined by William Taylor, assistant professor, and curator of archaeology at the University of Colorado Boulder, to learn about how horses impacted the shaping of the American West.

Hollywood’s Trolley Problem

A recurring dramatic trope in film and television relates to the trolley problem, wherein a dilemma arises in which choice must be made to save one or another. We are joined by Joshua Greene, a professor of psychology at Harvard University, who has spent much of his career studying moral judgment and decision-making.

Avoiding AI Plagiarism

Jooyoung Lee, a doctoral student at Penn State’s College of Information Sciences and Technology, joins us to talk about her research on plagiarism from language models in popular online chatbots.

Reconstructing Black Hole Images

The landmark first image of a black hole, at the center of the Messier 87 galaxy, has received a makeover with the help of machine learning. Lia Medeiros, an astrophysicist at the Institute for Advanced Study joins to discuss how she used PRIMO to reach the full resolution of the Event Horizon Telescope and what impacts it will have on black hole physics.

Quantum Communication

Spiros Michalakis is manager of outreach and a staff researcher at Caltech’s Institute for Quantum Information and Matter, an NSF Physics Frontiers Center. He joins us to discuss his role representing the U.S. for World Quantum Day; quantum states as a natural language; the challenges in communicating complex ideas; and where he hopes to see the field go in the future.

Mapping the Brain

In a landmark development for neuroscience, an interdisciplinary team has completed the first full map of an insect brain, revealing synaptic connections and valuable insights into how the brain operates. We are joined by Joshua Vogelstein, associate professor of biomedical engineering at Johns Hopkins University to learn about the obstacles in processing and analyzing big data; the links between animal intelligence, artificial intelligence, and machine learning; and where he’s hoping to take his research in the future.

Revolutionizing Manufacturing

The NSF Engineering Research Center for Hybrid Autonomous Manufacturing Moving from Evolution to Revolution will accelerate the development and deployment of intelligent, autonomous manufacturing systems, enabling mass customization in local production facilities. We are joined by co-principal investigators Glenn Daehn and Jian Cao, as well as NSF Director Sethuraman Panchanathan, Assistant Director for Engineering Susan Margulies, and ERC Program Director Sarit Bhaduri.  

Women in STEM

Representation is vital for inspiring the next generation, and the fields of science, technology, engineering, and mathematics are no different. Today we are joined by Karen Marrongelle, the NSF’s chief operating officer to talk about her career in mathematics, leadership in education and efforts being made to bolster the future STEM workforce.

Cognitive Transformation and Desistance

Peggy Giordano has studied cognitive transformation and the dynamics of desistance for many years. Her work at Bowling Green State University in Ohio led to a 2021 Stockholm Prize in Criminology. We’ll hear about her study that follows subjects from adolescence into adulthood looking at social influences on the long-term cessation of violence, including the effects of intimate partner and family dynamics, and what behavioral changes are needed for successful cessation to occur.

The Life of Cordyceps

The video game and television adaptation, The Last of Us, has created a lot of interest in the parasitic fungi Ophiocordyceps. We're joined by Charissa De Bekker, assistant professor of biology at Utrecht University in the Netherlands, to learn about the different kinds of Cordyceps, her experience studying their parasitic relationship with ants, and the zombie-like behavior that is exhibited as the fungus develops.