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The surprising connections in science and technology that give you the Big Picture. Astronomer Seth Shostak and science journalist Molly Bentley are joined each week by leading researchers, techies, and journalists to provide a smart and humorous take on science. Our regular "Skeptic Check" episodes cast a critical eye on pseudoscience.
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Join communications specialist Beth Johnson for a conversation with Dr. Anastasia Yanchilina, Frank Drake Postdoctoral Fellow at the SETI Institute, as we explore how life might emerge and/or be mistaken for in environments beyond Earth. Dr. Yanchilla studies abiotic mineral structures, or "chemical gardens," that resemble biological life but form entirely through non-living processes. By recreating these systems under conditions similar to hydrothermal vents on ocean worlds such as Enceladus and Mars, she investigates how to distinguish between life and non-life, and what this means for the origin of life on Earth. We'll discuss how minerals, organics, and even UV light interact in these experiments, and how this research helps us refine the search for biosignatures across the solar system. (Recorded live 21 August 2025.)
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