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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.

Sep 20, 2021

Sarah Chambliss discusses racial and ethnic disparities in exposure to air pollutants. Image credit: Pixabay/sueegeneris.

Sep 7, 2021

Maggie Wagner and Manuel Kleiner report that the interaction between maize and soil microbes influences hybrid vigor. Image credit: Kayla M. Clouse.