
Cool Worlds Podcast
Conversations between Professor David Kipping and guests, spanning astronomy, technology, science and engineering. This is the official podcast of the Cool Worlds Lab at Columbia University and their popular YouTube channel ”Cool Worlds”. Podcast episodes are filmed and can be found online through our YouTube channels.
Latest episodes

Jun 16, 2023 • 59min
#2 Wendy Freedman - The Crisis in Cosmology, Standard Candles, Future of Cosmology
Leading cosmologist Wendy Freedman discusses the crisis in cosmology, advancements in cosmology from glass plates to CCDs, historical observations of dark matter, challenges of science communication in cosmology, unknown systematics in cosmological measurements, tension between measurements of cosmic background and cepheids, and importance of independent checks in cosmology.

Jun 3, 2023 • 54min
#1 Rebecca Charbonneau - Astrohistory, Carl Sagan, Cold War SETI
In our inaugural episode, David is joined by Rebecca Charbonneau. Dr Charbonneau holds a PhD in the History of Science from Cambridge University, and served as the Historian-in-Residence at the Harvard-Smithsonian Center for Astrophysics from 2020-2022. She is currently a Janksy Fellow at the National Radio Astronomy Observatory (NRAO) and working on an upcoming book exploring the history of SETI - the Search for ExtraTerrestrial Intelligence.
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