Science Time Podcast

On this week’s show: Scientists are expanding the hunt for habitable exoplanets to bigger worlds, and why improvements in air quality have stagnated in Los Angeles, especially during summer, despite cleaner cars and increased regulations Staff Writer Daniel Clery joins producer Meagan Cantwell to talk through the major contenders for habitable exoplanets—from Earth-like rocky planets to water worlds. Preliminary results from two rocky exoplanets have some researchers concerned about whether they will be able to detect atmospheres around planets orbiting turbulent stars.   Next, producer Ariana Remmel talks with Eva Pfannerstill, an atmospheric chemist at the Jülich Research Center, about how volatile organic compounds, mostly from plants, are causing an increase in air pollution during hot days in Los Angeles.    This week’s episode was produced with help from Podigy. This week’s episode was produced with help from Podigy. About the Science Podcast   Authors: Daniel Clery; Meagan Cantwell; Arianna Remmel   Episode page: https://www.science.org/doi/10.1126/science.zxi Learn more about your ad choices. Visit megaphone.fm/adchoices

On this week’s show: Companion animals such as dogs occupy the same environment we do, which can make them good sentinels for human health, and DNA gives clues to ancient Maya rituals and malaria’s global spread Contributing Correspondent Andrew Curry joins host Sarah Crespi to discuss two very different studies that used DNA to dig into our past. One study reveals details of child sacrifices in an ancient Maya city. The other story is on the surprising historical reach of malaria, from Belgium to the Himalayas to South America.   Next on the show, using our canine companions to track human health. Courtney Sexton, a postdoctoral research fellow in the Department of Population Health Sciences at the Virginia-Maryland College of Veterinary Medicine, talks about what we can learn from these furry friends that tend to be exposed to many of the same things we are such as pesticides and cleaning chemicals.   Finally, in a sponsored segment from the Science/AAAS Custom Publishing Office, Jackie Oberst, associate editor of custom publishing, interviews professors Miriam Merad and Brian Brown about the evolution of immunology in health care. This segment is sponsored by the Icahn School of Medicine at Mount Sinai.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; Andrew Curry   Episode page: https://www.science.org/doi/10.1126/science.zxgwbqo Learn more about your ad choices. Visit megaphone.fm/adchoices

Despite not having a known function, cellular “vaults” are on the verge of being harnessed for all kinds of applications, and looking at the evolution of brown fat into a heat-generating organ   First on this week’s show, Managing News Editor John Travis joins host Sarah Crespi to discuss mysterious cellular complexes called “vaults.” First discovered in the 1980s, scientists have yet to uncover the function of these large, common, hollow structures. But now some researchers are looking to use vaults to deliver cancer drugs and viruses for gene therapy.   Next, what can we learn about the evolution of brown fat from opossums? Unlike white fat, which stores energy in many mammals, brown fat cells use ATP to generate heat, helping babies maintain their body temperature and hibernators kick-start their summers. Susanne Keipert, a researcher in the Department of Molecular Biosciences at Stockholm University’s Wenner-Gren Institute, talks about when in evolutionary history brown fat took on this job of burning energy.   Finally, this week we are launching our music refresh! If you are interested in what happened to our music—where it came from and how it’s different (and the same)—stay tuned for a chat with artist Nguyên Khôi Nguyễn.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; John Travis  Episode page: https://www.science.org/doi/10.1126/science.zpoy92t Learn more about your ad choices. Visit megaphone.fm/adchoices

Studying color vision in with children who gain sight later in life, joining a cancer trial doesn’t improve survival odds, and the first in our books series this year First on this week’s show, Staff Writer Jennifer Couzin-Frankel joins host Sarah Crespi to discuss the pros and cons of participating in clinical trials. Her story challenges the common thinking that participating in a trial is beneficial—even in the placebo group—for cancer patients.   Next, Lukas Vogelsang, a postdoctoral fellow in the department of brain and cognitive sciences at the Massachusetts Institute of Technology, talks about research into color vision with “late-sighted” kids. Studying children who were born blind and then later gained vision gave researchers new insights into how vision develops in babies and may even help train computers to see better.   Last up on the show is the first in our series of books podcasts on a future to look forward to. Books host Angela Saini talks with author Claire Horn, a researcher based at Dalhousie University’s Health Justice Institute. They discuss the implications of growing babies from fertilized egg to newborn infant—completely outside the body—and Horn’s book Eve: The Disobedient Future of Birth.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; Angela Saini; Jennifer Couzin-Frankel   Episode page: https://www.science.org/doi/10.1126/science.z6gdgb4 Learn more about your ad choices. Visit megaphone.fm/adchoices

A roundup of online news stories featuring animals, and researchers get crows to “count” to four   This week’s show is all animals all the time. First, Online News Editor Dave Grimm joins host Sarah Crespi to discuss stepping on venomous snakes for science, hunting ice age cave bears, and demolishing lizardlike buildings.   Next, producer Kevin McLean talks with Diana Liao, a postdoctoral researcher at the University of Tübingen, about teaching crows to count out loud. They discuss the complexity of this behavior and how, like the famous band, these counting corvids have all the right vocal skills to do it.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; Kevin McLean; David Grimm   Episode page: https://www.science.org/doi/10.1126/science.ztje4j6 Learn more about your ad choices. Visit megaphone.fm/adchoices

On this week’s show: What happens when the body’s own immune system attacks the brain, and how otters’ use of tools expands their diet   First on the show this week, when rogue antibodies attack the brain, patients can show bizarre symptoms—from extreme thirst, to sleep deprivation, to outright psychosis. Contributing Correspondent Richard Stone joins host Sarah Crespi to discuss the hunt for biomarkers and treatments for this cluster of autoimmune disorders that were once mistaken for schizophrenia or even demonic possession.   Next on this episode, producer Katherine Irving talks with Chris Law, an evolutionary biologist at the University of Washington and the University of Texas at Austin, about how sea otters gain energy benefits (and dental benefits) when they use tools to tackle tougher prey such as snails or large clams.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; Richard Stone; Katherine Irving Episode page: https://www.science.org/doi/10.1126/science.z4pdg62 Learn more about your ad choices. Visit megaphone.fm/adchoices

Jupiter’s moon Io has likely been volcanically active since the start of the Solar System, and a proposal to safeguard healthy human subjects in clinical trials First on the show this week, a look at proposed protections for healthy human subjects, particularly in phase 1 clinical trials. Deputy News Editor Martin Enserink joins host Sarah Crespi to discuss the risks healthy participants face when involved in early testing of drugs for safety and tolerance. Then, we hear about a project to establish a set of global standards initiated by the Ethics Committee of France’s national biomedical research agency, INSERM.   Next on this episode, a peek at the history of the most volcanically active body in the Solar System, Jupiter’s moon Io. Because the surface of Io is constantly being remodeled by its many volcanoes, it’s difficult to study its past by looking at craters or other landmarks. Katherine de Kleer, assistant professor of planetary science and astronomy at the California Institute of Technology, talks about using isotopic ratios in the moon’s atmosphere to estimate how long it’s been spewing matter into space.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; Martin Enserink   Episode page: https://www.science.org/doi/10.1126/science.zyq2ig8 Learn more about your ad choices. Visit megaphone.fm/adchoices

Bringing historical seismic reports and modern seismic risk maps into alignment, and a roundup of stories from our newsletter, ScienceAdviser   First on the show this week, a roundup of stories with our newsletter editor, Christie Wilcox. Wilcox talks with host Sarah Crespi about the oldest ice ever found, how well conservation efforts seem to be working, and repelling mosquitoes with our skin microbes.   Next on this episode, evaluating seismic hazard maps. In a Science Advances paper this week, Leah Salditch, a geoscience peril adviser at risk and reinsurance company Guy Carpenter, compared modern seismic risk map predictions with descriptions of past quakes. The analysis found a mismatch: Reported shaking in the past tended to be stronger than modern models would have predicted. She talks with Crespi about where this bias comes from and how to fix it.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; Christie Wilcox   Episode page: https://www.science.org/doi/10.1126/science.zfj31xo Learn more about your ad choices. Visit megaphone.fm/adchoices

Researchers try to identify effective loneliness interventions, making the Sandmeyer safer, and books that look to the future and don’t see doom and gloom   First up on the show, Deputy News Editor Kelly Servick explores the science of loneliness. Is loneliness on the rise or just our awareness of it? How do we deal with the stigma of being lonely?   Also appearing in this segment: ●     Laura Coll-Planas ●     Julianne Holt-Lunstad ●     Samia Akhter-Khan   Next, producer Ariana Remmel talks with Tim Schulte, a graduate student at the Max Planck Institute for Coal Research and RWTH Aachen University, about making one of organic chemistry’s oldest reactions—the Sandmeyer reaction—both safer and more versatile.   Finally, we kick off this year’s book series with books editor Valerie Thompson and books host Angela Saini. They discuss this year’s theme: a future to look forward to.   Book segments come out the last episode of the month. Books in the series: ●     Eve: The Disobedient Future of Birth by Claire Horn (May) ●     Tokens: The Future of Money in the Age of the Platform by Rachel O’Dwyer (June) ●     The Heart and the Chip: Our Bright Future with Robots by Daniela Rus and Gregory Mone (July) ●     Climate Capitalism: Winning the Race to Zero Emissions and Solving the Crisis of Our Age by Akshat Rathi (August) ●     Virtual You: How Building Your Digital Twin Will Revolutionize Medicine and Change Your Life by Peter Coveney and Roger Highfield (September) ●     Imagination: A Manifesto by Ruha Benjamin (October)     This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; Kelly Servick; Ariana Remmel; Valerie Thompson; Angela Saini LINKS FOR MP3 META   Episode page: https://www.science.org/doi/10.1126/science.zqubta7   About the Science Podcast: https://www.science.org/content/page/about-science-podcast Learn more about your ad choices. Visit megaphone.fm/adchoices

A different source of global warming, signs of a continentwide tradition of human sacrifice, and a virus that attacks the cholera bacteria   First up on the show this week, clearer skies might be accelerating global warming. Staff Writer Paul Voosen joins host Sarah Crespi to discuss how as air pollution is cleaned up, climate models need to consider the decrease in the planet’s reflectivity. Less reflectivity means Earth is absorbing more energy from the Sun and increased temps.   Also from the news team this week, we hear about how bones from across Europe suggest recurring Stone Age ritual killings. Contributing Correspondent Andrew Curry talks about how a method of murder used by the Italian Mafia today may have been used in sacrifices by early farmers, from Poland to the Iberian Peninsula.   Finally, Eric Nelson, an associate professor at the University of Florida’s Emerging Pathogens Institute, joins Sarah to talk about an infectious bacteria that’s fighting on two fronts. The bacterium that causes cholera—Vibrio cholerae—can be killed off with antibiotics but at the same time, it is hunted by a phage virus living inside the human gut. In a paper published in Science, Nelson and colleagues describe how we should think about phage as predator and bacteria as prey, in the savanna of our intestines. The ratio of predator to prey turns out to be important for the course of cholera infections.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; Paul Voosen; Andrew Curry   Episode page: https://www.science.org/doi/10.1126/science.zhgw74e Learn more about your ad choices. Visit megaphone.fm/adchoices