On this week’s show: NASA’s unprecedented asteroid-deflection mission, and making storage space for fresh water underground in Bangladesh First up on the podcast this week, News Intern Zack Savitsky joins host Sarah Crespi to talk about the upcoming NASA mission, dubbed the Double Asteroid Redirection Test, that aims to ram a vending machine–size spacecraft into an asteroid and test out ideas about planetary defense. Also this week, Sarah talks with Mohammad Shamsudduha, an associate professor in humanitarian science at University College London’s Institute for Risk and Disaster Reduction. He explains how millions of individual farmers in Bangladesh are creating the “Bengal water machine,” a giant underground sponge to soak up fresh water during monsoon season. This week’s episode was produced with help from Podigy. [Image: SW Photography/Getty; Music: Jeffrey Cook] [alt: photo of agricultural fields and a big river at sunset in the city of Cox’s Bazar, Bangladesh, with podcast overlay symbol] Authors: Sarah Crespi; Zack Savitsky Episode page: https://www.science.org/doi/10.1126/science.ade8885 About the Science Podcast: https://www.science.org/content/page/about-science-podcast Learn more about your ad choices. Visit megaphone.fm/adchoices

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