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Welcome to Science Sessions, the PNAS podcast program. Listen to brief conversations with cutting-edge researchers, Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in PNAS, plus a broad range of scientific news about discoveries that affect the world around us. Please scroll down for recent podcasts.

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  2. 2022
  3. 03

Origin of the Great Unconformity

Mar 28, 2022

Brenhin Keller and Kalin McDannell explore the origins of a worldwide gap in the geologic record spanning hundreds of millions to billions of years.

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Ethnoracial identity of MENA Americans

Mar 14, 2022

Neda Maghbouleh, Ariela Schachter, and René Flores explore the US Census classification of people with Middle Eastern and North African ancestry.

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