Science Magazine Podcast

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Mysterious objects beyond Neptune, and how wildfire pollution behaves indoors Oct 13, 2023

Show notes

The Kuiper belt might be bigger than we thought, and managing the effects of wildfires on indoor pollution

First up on this week’s show, the Kuiper belt—the circular field of icy bodies, including Pluto, that surrounds our Solar System—might be bigger than we thought. Staff Writer Paul Voosen joins host Sarah Crespi to discuss the distant Kuiper belt objects out past Neptune, and how they were identified by telescopes looking for new targets for a visit by the New Horizons spacecraft.

Next up on the show, the impact of wildfire smoke indoors. Producer Kevin McLean talks with Delphine Farmer, a chemist at Colorado State University, about an experiment to measure where particulates and volatile organic compounds end up when they sneak inside during a wildfire event.

Finally, in a sponsored segment from the Science/AAAS Custom Publishing Office, Jackie Oberst, associate editor for custom publishing, discusses with Jens Nielsen, CEO of the BioInnovation Institute—an international life science incubator in Copenhagen, Denmark—about the next big leap in biology: synthetic biology. This segment is sponsored by the BioInnovation Institute.

This week’s episode was produced with help from Podigy.

About the Science Podcast

Authors: Sarah Crespi, Paul Voosen, Kevin McLean

Episode page: https://www.science.org/doi/10.1126/science.adl3178

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How long can ancient DNA survive, and how much stuff do we need to escape poverty? Oct 05, 2023

Show notes

Pushing ancient DNA past the Pleistocene, and linking agriculture to biodiversity and infectious disease

First up on this week’s show, Staff Writer Erik Stokstad brings a host of fascinating stories, from the arrival of deadly avian flu in the Galápagos to measuring the effect of earthworms on our daily bread. He and host Sarah Crespi start off the segment discussing just how much stuff you need to avoid abject poverty and why measuring this value can help us balance human needs against planetary sustainability.

Other stories from Erik mentioned in this segment:

● Elephant trunk’s ‘stunning’ microscopic musculature may explain its dexterity | Science

● ‘Mind-boggling’ sea creature spotted off Japan has finally been identified | Science

Next up on the show, as part of a special issue on ancient DNA, freelance producer Katherine Irving talks with Love Dalén, a professor of evolutionary genomics at the Centre for Palaeogenetics at Stockholm University. They talk about the longevity of ancient DNA and what it would take to let us see back even further. See the whole ancient DNA special issue here.

This week’s episode was produced with help from Podigy.

About the Science Podcast

Authors: Sarah Crespi, Erik Stokstad, Katherine Irving

Episode page: https://www.science.org/doi/10.1126/science.adl1587

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Visiting utopias, fighting heat death, and making mysterious ‘dark earth’ Sep 28, 2023

Show notes

A book on utopias and gender roles, India looks to beat climate-induced heat in cities, and how ancient Amazonians improved the soil

First up on this week’s show: the latest in our series of books on sex, gender, and science. Books host Angela Saini discusses Everyday Utopia: In Praise of Radical Alternatives to the Traditional Family Home with ethnographer Kristen Ghodsee, professor of Russian and Eastern European studies at the University of Pennsylvania. See this year’s whole series here.

Also this week, as part of a special issue on climate change and health, host Sarah Crespi speaks with Vaishnavi Chandrashekhar, a freelance journalist based in Mumbai, India. They talk about how India is looking to avoid overheating cities in the coming decades, as climate change and urbanization collide.

Finally, we hear about how ancient Amazonians created fertile “dark earth” on purpose. Sarah is joined by Morgan Schmidt, an archaeologist and geographer at the Federal University of Santa Catarina. They discuss recent research published in Science Advances on the mysterious rich soil that coincides with ancient ruins, which may still be produced by modern Indigenous people in Brazil.

This week’s episode was produced with help from Podigy.

About the Science Podcast

Authors: Sarah Crespi, Vaishnavi Chandrashekhar, Angela Saini

Episode page: https://www.science.org/doi/10.1126/science.adl0606

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Reducing cartel violence in Mexico, and what to read and see this fall Sep 21, 2023

Show notes

The key to shrinking cartels is cutting recruitment, and a roundup of books, video games, movies, and more

First up on this week’s show: modeling Mexico’s cartels. Rafael Prieto-Curiel, a postdoctoral research fellow at the Complexity Science Hub in Vienna, joins host Sarah Crespi to discuss how modeling cartel activities can help us understand the impact of potential interventions such as increased policing or reducing gang recruitment.

Lisa Sanchez, executive director of México Unido Contra la Delincuencia, talks with Sarah about just how difficult it would be to make the model results—which show that reducing recruitment is key—a reality.

Next on the show, Science books editor Valerie Thompson and books intern Jamie Dickman discuss a huge selection of science books, movies, video games, and even new exhibits—all due out this fall. See the complete roundup here.

This week’s episode was produced with help from Podigy.

About the Science Podcast

Authors: Sarah Crespi, Valerie Thompson, Jamie Dickman

Episode page: https://www.science.org/doi/10.1126/science.adk9453

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Why cats love tuna, and powering robots with tiny explosions Sep 14, 2023

Show notes

Receptors that give our feline friends a craving for meat, and using combustion to propel insect-size robots

First up on this week’s episode, Online News Editor David Grimm joins host Sarah Crespi to talk about why despite originating from a dry, desert environment cats seem to love to eat fish.

Next on the show, bugs such as ants are tiny while at the same time fast and strong, and small robots can’t seem to match these insectile feats of speed and power. Cameron Aubin, a postdoc at Cornell University who will shortly join the University of Michigan, discusses using miniscule combustion reactions to bring small robots up to ant speed.

Finally in a sponsored segment from the Science/AAAS Custom Publishing Office, Jackie Oberst, associate editor for custom publishing, discusses with Bobby Soni, chief business officer at the BioInnovation Institute, an international life science incubator in Copenhagen, Denmark, what it takes to bring a product from lab to market and how to make the leap from scientist to entrepreneur. This segment is sponsored by the BioInnovation Institute.

This week’s episode was produced with help from Podigy.

About the Science Podcast

Authors: Sarah Crespi, David Grimm

Episode page: https://www.science.org/doi/10.1126/science.adk8409

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Extreme ocean currents from a volcano, and why it’s taking so long to wire green energy into the U.S. grid Sep 07, 2023

Show notes

How the Tonga eruption caused some of the fastest underwater flows in history, and why many U.S. renewable energy projects are on hold

First up on this week’s show, we hear about extremely fast underwater currents after a volcanic eruption. Producer Meagan Cantwell talks with sedimentary geologist Michael Clare and submarine volcanologist Isobel Yeo, both at the U.K. National Oceanography Centre. They discuss the complex aftermath of the Hunga Tonga-Hunga Ha’apai eruption, including fast and powerful ocean currents that severed seafloor cables.

Watch a related video on last year’s eruption by Meagan: How the Tonga volcanic eruption rippled through the earth, ocean and atmosphere.

Next on the show, an unexpected slowdown in connecting renewable power to the electrical grid. Freelance journalist Dan Charles joins host Sarah Crespi to discuss how problems with modeling energy flow in the electrical grid are holding up wind and solar power projects across the country.

This week’s episode was produced with help from Podigy.

About the Science Podcast

Authors: Sarah Crespi, Meagan Cantwell; Dan Charles

Episode page: https://www.science.org/doi/10.1126/science.adk7170

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Reducing calculus trauma, and teaching AI to smell Aug 31, 2023

Show notes

How active learning improves calculus teaching, and using machine learning to map odors in the smell space

First up on this week’s show, Laird Kramer, a professor of physics and faculty in the STEM Transformation Institute at Florida International University (FIU), talks with host Sarah Crespi about students leaving STEM fields because of calculus and his research into improving instruction.

We also hear from some Science staffers about their own calculus trauma, from fear of spinning shapes to thinking twice about majoring in physics (featuring Kevin McLean, Paul Voosen, Lizzie Wade, Meagan Cantwell, and FIU student and learning assistant Carolyn Marquez).

Next on the show, can a computer predict what something will smell like to a person by looking at its chemical structure? Emily Mayhew, a professor in the department of food science and human nutrition at Michigan State University, talks about how this was accomplished using a panel of trained smellers, and what the next steps are for digitizing the sense of smell.

This week’s episode was produced with help from Podigy.

About the Science Podcast

Authors: Sarah Crespi, Kevin McLean; Meagan Cantwell; Paul Voosen; Lizzie Wade

Episode page: https://www.science.org/doi/10.1126/science.adk6142

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The source of solar wind, hackers and salt halt research, and a book on how institutions decide gender Aug 24, 2023

Show notes

A close look at a coronal hole, how salt and hackers can affect science, and the latest book in our series on science, sex, and gender

First up on this week’s show, determining the origin of solar wind—the streams of plasma that emerge from the Sun and envelope the Solar System. Host Sarah Crespi talks with Lakshmi Pradeep Chitta, a research group leader at the Max Planck Institute for Solar System Research, about how tiny jets in so-called coronal holes seem to be responsible. Sarah also talks with Science Editor Keith Smith about the source of the data, the Solar Orbiter mission. Read a related Perspective.

Next, two stories on unlikely reasons for slowing science. First, cyberattacks on telescopes scramble ground-based astronomy in Hawaii and Chile, with Diverse Voices Interns Tanvi Dutta Gupta and Celina Zhao. Also, we hear about an unparalleled water crisis in Uruguay that has left scientists high and dry, with science journalist María de los Ángeles Orfila.

Finally, in this month’s books segment in our series on science, sex, and gender, host Angela Saini talks with author and political scientist Paisley Currah about his book, Sex Is as Sex Does: Governing Transgender Identity, on why and how government institutions categorize people by sex and gender.

This week’s episode was produced with help from Podigy.

About the Science Podcast

Authors: Sarah Crespi, Angela Saini; María de los Ángeles Orfila; Celina Zhao; Tanvi Dutta Gupta

Episode page: https://www.science.org/doi/10.1126/science.adk4714

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What killed off North American megafauna, and making languages less complicated Aug 17, 2023

Show notes

Ancient wildfires may have doomed Southern California’s big mammals, and do insular societies have more complex languages?

First up on this week’s show, what killed off North America’s megafauna, such as dire wolves and saber-toothed cats? Online News Editor Mike Price joins host Sarah Crespi to talk about the likely culprits: climate or humans, or one that combines both—fire. They discuss how the La Brea Tar Pits are helping researchers figure this out. Read the related Science paper.

Next up, do languages get less complex when spoken in multilingual societies? Olena Shcherbakova, a doctoral researcher at the Max Planck Institute for Evolutionary Anthropology, joins Sarah with a broad look at how the complexity of languages changes under different social and linguistic environments.

In a sponsored segment from the Science/AAAS Custom Publishing Office, Jackie Oberst, associate editor for custom publishing, discusses with Trine Bartholdy, chief innovation officer at the BioInnovation Institute, an international life science incubator in Copenhagen, Denmark, about the continued disparity in women’s health research and funding and ways in which these challenges are being overcome. This segment is sponsored by the BioInnovation Institute.

This week’s episode was produced with help from Podigy.

Authors: Sarah Crespi, Mike Price

Episode page: https://www.science.org/doi/10.1126/science.adk3475

About the Science Podcast: https://www.science.org/content/page/about-science-podcast

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Why some trees find one another repulsive, and why we don’t know how much our hands weigh Aug 10, 2023

Show notes

First up on this week’s show, we hear about the skewed perception of our own hands, extremely weird giant viruses, champion regenerating flatworms, and more from Newsletter Editor Christie Wilcox. Christie also chats with host Sarah Crespi about her work on a daily newsletter and what it takes to do it 5 days a week. Read more newsletters and sign up for your daily dose of Science and science.

Next on the show, AAAS Intern Andrew Saintsing learns about why trees are repulsive—to one another. Michael Kalyuzhny, a postdoctoral fellow in the department of integrative biology at the University of Texas at Austin, discusses his Science paper on why trees of the same species avoid living close together in diverse habitats such as rainforests.

This week’s episode was produced with help from Podigy.

About the Science Podcast

Authors: Sarah Crespi, Andrew Saintsing, Christie Wilcox

Episode page: https://www.science.org/doi/10.1126/science.adk2064

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