Angelina Callahan talks about the Naval Research Laboratory’s Vanguard Project. While the launch of Vanguard 1 in 1958 was part of the Cold War “Space Race,” it also represented something more: a scientific platform for understanding the space environment as well as a test vehicle that would provide data for satellites of the future. Vanguard 1 is still flying. At 60 years, it is the oldest artificial satellite in space. Callahan is the Naval Research Laboratory Historian. She is also a co-author (with John Krige and Ashok Mahara) of NASA in the World: Fifty Years of International Collaboration in Space (Palgrave Macmillan, 2013). Her work has also been featured in NASA Spaceflight: A History of Innovation, the Navy War College Review, Seapower Magazine, and Federal News Radio.
Michael F. Robinson is professor of history at Hillyer College, University of Hartford. He's the author of The Coldest Crucible: Arctic Exploration and American Culture (University of Chicago Press, 2006) and The Lost White Tribe: Scientists, Explorers, and the Theory that Changed a Continent (Oxford University Press, 2016). He's also the host of the podcast Time to Eat the Dogs, a weekly podcast about science, history, and exploration.

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