In this episode, I host Amanda Calhoun, PhD candidate in the Earth and Planetary Sciences program at Harvard! In one project, Amanda uses carbon isotopes to uncover signs of ancient life. In another project, Amanda uses pyrite (fool’s gold!) to understand Earth’s oxygen history. Listen to hear about the history of both our atmosphere and life itself!00:00 Intro and Overview02:46 Research Projects Explained05:41 Fieldwork and Sample Collection12:35 Goals & Implications of projects15:27 Origins of Life, Applications, and Environmental Impact21:04 Conclusion and Final ThoughtsMusic: 368 by Dyalla

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