talks about the history of twentieth-century physics and the forces that have shaped it as a scientific discipline. Kaiser is a Professor of the History of Science at the Massachusetts Institute of T

Dane Kennedy talks about Mungo Parks troubled expeditions in West Africa and the rescue expeditions that set off to find him. Kennedy is an emeritus professor of history and international affairs at

Gerald Easter and Mara Vorhees talk about the voyage of the Vrouw Maria and the long quest to find the ship under the waters of the Archipelago Sea off the coast of Finland. Easter is a professor of h

Adam Higginbotham talks about the history of the Space Shuttle program and the decisions that made the Challenger explosion almost inevitable. Higgenbotham is a journalist and contributing writer for

talks about Portuguese exploration in the nineteenth century as European powers made plans to conquer Africa and colonize its peoples. Madruga is a post-doctoral researcher at the Natural History Mus

Historian of science Jeffery Mathias talks about scientific experiments in isolation during the Cold War. Mathias is the author of the Ph.D dissertation, "An Empire of Solitude: Isolation and the Cold

Alexandre Simon-Ekeland talks about explorers, the Polar Regions, and the French imagination. Simon-Ekeland recently completed his doctoral dissertation at the University of Oslo. He is the author of

Felipe Fernandez-Armesto talks about the life and work of Ferdinand Magellan. Fernandez-Armesto is the William P. Reynolds Professor of History at the University of Notre Dame. He is the author of Straits: Beyond the Myth of Magellan. Learn more about you

Dr. Hannah Wakeford talks about the Webb Telescope and its significance for the study of exoplanets: planets orbiting suns in other solar systems. Wakeford is a lecturer in Astrophysics at the University of Bristol. She is also one of the hosts of Exocast

Dr. Carolin Roeder talks about the Soviet search for the abominable snowman and its parallels to other "wildman" legends in the United States and elsewhere. Roeder facilitates research collaboration between the Freie Universität in Berlin and other Europe