Science Magazine Podcast - Archive

First up on the podcast, freelance science journalist Hannah Richter joins host Sarah Crespi to discuss NASA’s plans to send a nuclear-powered spacecraft to Mars in less than 3 years. Having not launched a fission reactor to space in more than 60 years, the organization faces many technical and bureaucratic hurdles to make that deadline. Next on the show, Aaron Sandel, associate professor in the Department of Anthropology at the University of Texas at Austin and co-director of the Ngogo Chimpanzee Project, reports this week in Science on what looks like

How do we know what's normal in a person? In the early 1950s, the National Institutes of Health (NIH) set out to do something unprecedented. It wanted to start studying normal humans on a grand scale. It had pretty much everything in place: It had the building, it had recruited all of these amazing researchers—it was the healthy human bodies NIH didn't have. How do we know what’s normal in a person? In the early 1950s, the U.S. National Institutes of Health (NIH) set out to do something unprecedented. It wanted

First up on the podcast, a new path to calculating the Hubble constant. This value for the universe’s speed of expansion is typically determined in one of two ways, one favored by cosmologists, the other by astronomers. But the resulting values from these methods are consistently different. Staff Writer Daniel Clery joins host Sarah Crespi to discuss how reappearing bursts from deep space, lensed by gravity, could resolve the dispute over the speed of the expanding universe. Next on the show, freelance producer Elah Feder talks with Mauro Costa-Mattioli, principal investigator

First up on the podcast, Deputy News Editor Martin Enserink talks about so-called resurrection plants. These specialized plants can survive up to 95% water loss, whereas most plants struggle when their water levels dip below 60%. We also hear from Jill Farrant, a professor of molecular and cell biology at the University of Cape Town, about her work dissecting the desiccation survival pathways in resurrection plants and how they might be repurposed to protect crop plants from drought. Next on the show, we’ve all heard of chatbots praising their users for

First up on the podcast, we discuss a finding that’s likely to reignite debate over how humans first spread through the Americas. In the late 1990s, a site in southern Chile called Monte Verde forced archaeologists to adjust their views of the peopling of South America because it dated to about 14,500 years before present, which challenged the prevailing idea of when human inhabitants appeared on the continent. Contributing Correspondent Lizzie Wade joins host Sarah Crespi to discuss new results published in Science that suggest Monte Verde is nowhere near that

First up on the podcast, freelance journalist Evan Howell traveled to Cape Blossom, Alaska, where the receding coastline has revealed an ancient trove of glacial ice that may have survived for 350,000 years—making it the oldest ice in the Northern Hemisphere. Now researchers just need to figure out how to date it. Next on the show, tracking wolves and ravens in Yellowstone National Park shows the birds don’t follow the wolves in hope of a meal, but instead remember and revisit frequent wolf kill sites. Matthias-Claudio Loretto, assistant professor in the

First up on the podcast, a peek into the roiling seas of U.S. science policy. ScienceInsider Editor Jocelyn Kaiser talks about shifting leadership at the National Science Foundation and the Centers for Disease Control and Prevention as well as a dip in funding rates by the National Institutes of Health. Staff Writer Robert F. Service covers proposed restrictions on access by international researchers and students to the National Institute of Standards and Technology. Contributing Correspondent Warren Cornwall talks about the Department of Energy’s rush to loosen radiation exposure standards. Senior International

First up on the podcast, producer Meagan Cantwell talks to Contributing Correspondent Warren Cornwall about his visit to Brazil, where he observed firsthand what it takes for researchers to understand why bird populations in the Amazon and beyond are shrinking. Next on the show, Raouf Belkhir, an M.D.-Ph.D. student at the University of Pittsburgh School of Medicine and Carnegie Mellon University, joins host Sarah Crespi to discuss his Science Advances paper on a newly refined way to map awake patients’ brains during neurosurgery. This week’s episode was produced with help from

First up on the podcast, Newsletter Editor Christie Wilcox, Associate Online News Editor Michael Greshko, and intern Perri Thaler share their experiences from the AAAS annual meeting in Phoenix. Christie recorded on location with David Rand regarding his prize-winning Science paper on using a large language model to combat conspiracy theories. Check out the live version of his team’s Debunk Bot. Michael chats with host Sarah Crespi about the foggy outlook of science in the United States as funding levels and graduate positions decline, and the bright sunshine of young students

First up on the podcast, more than half of all dogs going through service animal training don’t make it to graduation. Producer Kevin McLean journeys with Online News Editor David Grimm to Canine Companions, one of the biggest organizations in the United States for training working dogs. At the facility, they meet puppies in preparation and learn about the behavioral testing and genetics that could be used to improve service animal schooling. Also appearing in this segment: Emily Bray, assistant professor in the College of Veterinary Medicine at the University of

First up on the podcast, host Sarah Crespi and Staff Writer Adrian Cho talk football and the latest science behind helmets engineered to reduce head injuries. Have better materials and testing led to fewer concussions and chronic traumatic encephalopathy in players? Next on the show, more than 100,000 people die from opioid overdoses in North America per year. Although much study has gone into addiction research, less attention has been paid to the biological details of overdose itself. John Strang, a professor in the National Addiction Centre at King’s College London,

First up on the podcast, how do we protect astronauts when they leave the shelter of Earth’s protective magnetic fields and face the slow, constant bombardment of space radiation? Freelance science journalist Elie Dolgin joins host Sarah Crespi to discuss what we know about the damage from high-velocity particles and the research being done to curb their biological toll. Next on the show, modeling the fall of fossil fuels during the decarbonization of energy systems, with civil engineer and environmental sociologist Emily Grubert and historian and engineer Joshua Lappen, both at

First up with Jennie Erin Smith, Science’s new senior biomedicine reporter, we delve into: autobrewery syndrome, when microbes inside the human gut make too much alcohol; how doctors can use a public repository, the Mexican Biobank, to guide patient care; and preliminary findings that surgery on the brain’s plumbing shows promise for Alzheimer’s disease. Next on the show, it’s tough to calculate when and where deorbiting spacecraft might enter the upper atmosphere and then eventually hit the ground. Benjamin Fernando, a seismologist and planetary scientist at Johns Hopkins University, has shown

First up on the podcast, freelance science journalist Sofia Quaglia talks about her visit to the Galápagos archipelago and how researchers there are working to restore the islands to their former ecological glory. *Note this episode has been updated to reflect that the Ecuadorian government is not responsible for primarily funding these efforts. Next on the show, Antarctica’s deep ice coating obscures the hills and valleys on its surface, making the continent’s response to climate change one of the biggest unknowns in predicting sea level rise over the next century. Helen

First up on the podcast, scholars are on a quest to find Leonardo da Vinci’s DNA. With no direct descendants, the hunt involves sampling the famous polymath’s papers, paintings, and distant cousins. Contributing Correspondent Richard Stone talks with host Sarah Crespi about what researchers hope to learn from Leonardo’s genes and the new field of “arteomics.” Next on the show, new evidence for poisoned arrows from 60,000 years ago complicates our picture of hunting during the Pleistocene. Sven Isaksson, a professor of archaeological science at Stockholm University, joins the podcast to

First up on the podcast, the best images of exoplanets right now are basically bright dots. We can’t see possible continents, potential oceans, or even varying colors. To improve our view, scientists are proposing a faraway fleet of telescopes that would use light bent by the Sun’s gravity to magnify a distant exoplanet. Staff Writer Daniel Clery joins host Sarah Crespi to discuss where to aim such a magnificent telescope and all the technological pieces needed to put it together. Next on the show, expert voices columnist and Johns Hopkins University

First up on the podcast, Online News Editor David Grimm joins host Sarah Crespi to talk about this year’s best online news stories—top performers and staff picks alike. Together they journey the scientific gamut, from bird feeders’ influence on hummingbird beak evolution to the use of “artificial spacetimes” to guide tiny robots through their environments. Next on the show, a discussion of this year’s pick for Breakthrough of the Year with producer Meagan Cantwell and News editor Greg Miller. They also touch on some other top finds from this year, including

First up on the podcast, we’ve likely only found about half the so-called city-killer asteroids (objects more than 140 meters in diameter). Freelance science journalist Robin George Andrews joins host Sarah Crespi to discuss the upcoming launch of NASA’s Near-Earth Object Surveyor, an asteroid hunter that will improve our ability to look for large objects that might crash into Earth, particularly those hiding in the Sun’s glare. Next on the show, freelancer producer Elah Feder talks with Wendy Valencia-Montoya, an organismic and evolutionary biology Ph.D. candidate at Harvard University, about heated

First up on the podcast, Science celebrates 100 years of quantum mechanics with a special issue covering the past, present, and future of the field. News Contributing Correspondent Zack Savitsky joins host Sarah Crespi to talk about a more philosophical approach to quantum physics and the mysterious measurement problem. Next on the show we have Anne Goujon, program director at the International Institute for Applied Systems Analysis in Laxenburg, Austria. She talks about her Expert Voices column on the uncertain future of demography and how the field is grappling with new

First up on the podcast, when will the world hit peak carbon emissions? It’s not an easy question to answer because emissions cannot be directly measured in real time. Instead, there are proxies, satellite measures, and many, many calculations. Staff Writer Paul Voosen joins host Sarah Crespi to discuss how close we are to the top of carbon mountain and the tough road to come after the peak passes. Vani Rajendran, senior researcher in the cognitive neuroscience department at the National Autonomous University of Mexico’s Institute of Cellular Physiology, talks about

First up on the podcast: the mysterious fate of Europe’s Neolithic farmers. They arrived from Anatolia around 5500 B.C.E. and began farming fertile land across Europe. Five hundred years later, their buildings, cemeteries, and pottery stopped showing up in the archaeological record, and mass graves with headless bodies started to appear across the continent. Contributing Correspondent Andrew Curry talks with host Sarah Crespi about what this strange transition might mean. Next on the show, Editor for Life Sciences Sacha Vignieri discusses recent dog research published in Science, including tracing the movement

First up on the podcast, Online News Editor David Grimm joins host Sarah Crespi for a rundown of online news stories. They talk about lichen that dine on dino bones, the physics of the lip-out problem in golf, and a brain-computer interface that can decode a tonal language (Chinese) from brain waves. Next on the show, Jeremy Munday, a professor of electrical and computer engineering at University of California, Davis, talks about generating mechanical power using a heat engine aimed at the night sky. Heat engines typically generate power by harnessing

First up on the podcast, Contributing Correspondent Sofia Moutinho visited the Xingu Indigenous territory in Brazil to learn about a long-standing collaboration between scientists and the Kuikuro to better understand early Amazon communities. Next on the show, we visit the Pacific pocket mouse recovery program at the San Diego Zoo Wildlife Alliance to talk with researchers about the tricky process of increasing genetic diversity in an endangered species. Researcher Aryn Wilder talks about a long-term project to interbreed mice from isolated populations in order to add more genetic diversity across the

First up on the podcast, increased carbon dioxide emissions sink more acidity into the ocean, but checking pH all over the world, up and down the water column, is incredibly challenging. Staff Writer Paul Voosen joins host Sarah Crespi to discuss a technique that takes advantage of how sound moves through the water to detect ocean acidification. Next on the show, we visit the lab of University of California San Diego professor Alysson Muotri at the Sanford Consortium, where he grows human brain organoids—multicellular structures that function like underdeveloped brains. Muotri

First up on the podcast, the Bering Sea’s snow crabs are bouncing back after a 50-billion-crab die-off in 2020, but scientists are racing to predict what’s going to happen to this important fishery. Contributing Correspondent Warren Cornwall joins host Sarah Crespi to discuss what’s next for snow crabs. Next on the show, freelance producer Elah Feder talks with Fei Peng, a professor in the department of psychology in the School of Public Health at Southern Medical University in Guangzhou, China, and principal investigator at the Great Bay Area Brain Science and

First up on the podcast, Contributing Correspondent Kai Kupferschmidt takes a trip to Svalbard, an Arctic archipelago where ancient RNA viruses may lie buried in the permafrost. He talks with host Sarah Crespi about why we only have 100 years of evolutionary history for viruses such as coronavirus and influenza, and what we can learn by looking deeper back in time. Next on the show, Nathalie Stroeymeyt, senior lecturer at the School of Biological Sciences at the University of Bristol, joins freelancer producer Elah Feder to talk about how humans aren’t

First up on the podcast, producer Kevin McLean talks with Associate Online News Editor Michael Greshko about the impact of wildfires on wine; a couple horse stories, one modern, one ancient; and why educators are racing to archive government materials. Next on the show, research that took advantage of a natural experiment in unnatural lighting. Host Sarah Crespi talks with Ph.D. student Liz Aguilar and Kimberly Rosvall, an associate professor, both in the department of biology at Indiana University Bloomington, about a citizen-science initiative that captured bird behavior before, during, and

First up on the podcast, Staff Writer Robert F. Service joins host Sarah Crespi to talk about a boom in nuclear medicine, from new and more powerful radioisotopes to improved precision in cancer cell targeting. Next on the show, we talk about why we sigh. Maria Clara Novaes-Silva, a doctoral student at ETH Zürich, discusses how deep breaths cause minute rearrangements at the special interface where air meets lung. The lung flexibility granted by these deeper inhalations suggest people on ventilators might have better lung health if they were served a

First up on the podcast, Science News Editor Tim Appenzeller joins host Sarah Crespi to discuss why a salty layer of permafrost undergirding Arctic ice is turning frozen landscapes into boggy morasses. Next on the show, glucose isn’t the only molecule in the body that can be monitored in real time; proteins can be, too. Freelancer producer Zakiya Whatley talks with Jane Donnelly, an MD/Ph.D. candidate at Northwestern University, about what we could learn from the live monitoring of key proteins, from the status of a transplanted organ to the early

First up on the podcast, freelance science journalist Leslie Roberts joins host Sarah Crespi to talk about the long journey to a vaccine for group B streptococcus, a microbe that sickens 400,000 babies a year and kills at least 91,000. Next on the show, there are about 250,000 agricultural drones employed on farms in China. Countries such as South Korea, Turkey, and Thailand are swiftly increasing agricultural drone use, whereas the United States and Russia are proceeding more slowly. Food policy researcher Ben Belton discusses what appears to drive drone use

First up on the podcast, aggressive tumors have a secret cache of DNA that may help them beat current drug treatments. Freelance journalist Elie Dolgin joins host Sarah Crespi to talk about targeting so-called extrachromosomal DNA—little gene-bearing loops of DNA—that help difficult-to-treat cancers break the laws of inheritance. Next on the show, producer Meagan Cantwell talks with Weidong Sun, director of the Center of Deep Sea Research at the Chinese Academy of Sciences, about the discovery of a hydrogen-rich system so large it makes up at least 5% of current estimates

First up on the podcast, despite so many advances in treatment, HIV drugs can suppress the virus but can’t cure the infection. Where does suppressed HIV hide within the body? Staff Writer Jon Cohen joins host Sarah Crespi to talk about the Last Gift Study, in which people with HIV donate their bodies for rapid autopsy to help find the last reservoirs of the virus. Next on the show, Christine Elliott, a doctoral candidate in the department of entomology at Purdue University, talks about the Bug Bowl—an annual public outreach event

First up on the podcast, Staff Writer Rodrigo Pérez Ortega joins host Sarah Crespi to talk about a megafauna megafind that rivals the La Brea Tar Pits. In addition to revealing tens of thousands of bones from everything from dire wolves to an ancient human, the site has yielded the first DNA from ammoths that lived in a warm climate. Next on the show, the Tijuana River crosses the U.S.-Mexican border from Tijuana to San Diego—bringing with it sewage, industrial waste, and stinky smells. News Intern Nazeefa Ahmed talks with Kimberly

First up on the podcast, Staff Writer Meredith Wadman joins host Sarah Crespi to discuss recent advances in understanding endometriosis—a disease where tissue that resembles the lining of the uterus grows outside the uterus, causing pain and other health effects. The pair talk about how investigating the role of the immune system in this disease is leading researchers to new potential diagnostic tools and treatments. Next on the show, why are there good dengue years and bad dengue years? This week in Science Translational Medicine, Talia Quandelacy and colleagues map the

First up on the podcast, producer Meagan Cantwell and Contributing Correspondent Sara Reardon discuss alternative approaches to animal testing, from a heart on a chip to a miniorgan in a dish. Next on the show, Expert Voices columnist Melanie Mitchell and host Sarah Crespi dig into AI lies. Why do chatbots fabricate answers and pretend to do math? Mitchell describes the stress tests large language models undergo—called red teaming—and the steps needed to better understand how they “think.” Melanie Mitchell is a professor at the Santa Fe Institute. You can read

First up on the podcast, Online News Editor David Grimm brings stories on peacock feathers’ ability to emit laser light, how anteaters have evolved at least 12 times, and why we should be thanking ketchup for our French fries. Next on the show, rorqual whales, such as the massive blue whale, use a lunging strategy to fill their monster maws with seawater and prey, then filter out the tasty parts with baleen sieves. Lunging for food when you weigh 100 tons seems like it would be an energetically expensive way to

First up on the podcast, Contributing Correspondent Richard Stone joins host Sarah Crespi to talk about the toll of the ongoing conflict in Ukraine and how researchers have been mobilized to help the war effort. In June, Stone visited the basement labs where Ukrainian students modify off-the-shelf drones for war fighting and the facilities where biomedical researchers develop implants and bandages for wounded soldiers. Next on the show, the isotopic ratios in our teeth and bones record the chemistry of what we eat. When anthropologists recently applied this technique to Neanderthals,

First up on the podcast, South Africa’s Cradle of Humankind is home to the world’s greatest concentration of ancestral human remains, including our own genus, Homo, Australopithecus, and a more robust hominin called Paranthropus. Proving they were there at the same time is challenging, but new fossil evidence seems to point to coexistence. Producer Kevin McLean discusses what a multihominin landscape might have looked like with Contributing Correspondent Ann Gibbons. Next on the show, should robots grow and adapt like babies? Host Sarah Crespi talks with roboticist Philippe Wyder about a

First up on the podcast, Réunion Island had a shark attack crisis in 2011 and closed its beaches for more than a decade. Former News Intern Alexa Robles-Gil joins host Sarah Crespi to talk about how researchers have used that time to study the island’s shark populations and test techniques for preventing attacks, in the hopes of protecting lives and reopening the island’s shores. Next on the show, engineering gut microbes to break down the precursors of kidney stones. Weston Whitaker, a research scientist at Stanford University, joins the podcast to

First up on the podcast, Newsletter Editor Christie Wilcox joins host Sarah Crespi to celebrate the 2-year anniversary of ScienceAdviser with many stories about the amazing water bear. They also discuss links between climate change, melting glaciers, and earthquakes in the Alps, as well as what is probably the first edible laser. Next on the show, freelance producer Elah Feder talks with Tatiana Feuerborn, a postdoctoral fellow in the cancer genetics and comparative genomics branch of the National Institutes of Health, about the evolutionary history of the Greenland sled dog. Her

First up on the podcast, U.S. aid helped two African countries rein in HIV. Then came President Donald Trump. Senior News Correspondent Jon Cohen talks with producer Kevin McLean about how in Lesotho and Eswatini, treatment and prevention cutbacks are hitting pregnant people, children, and teens especially hard. This story is part of a series about the impacts of U.S. funding cuts on global health, supported by the Pulitzer Center. Next on the show, host Sarah Crespi is joined by Robin Wordsworth, the Gordon McKay Professor in the School of Engineering

First up on the podcast, Contributing Correspondent Andrew Curry joins host Sarah Crespi to discuss a pair of Science papers on kinship and culture in Neolithic Anatolia. The researchers used ancient DNA and isotopes from 8000 to 9000 years ago to show how maternal lines were important in Çatalhöyük culture. ● E. Yüncü et al., Female lineages and changing kinship patterns in Neolithic Çatalhöyük, 2025 ● D. Koptekin et al., Out-of-Anatolia: Cultural and genetic interactions during the Neolithic expansion in the Aegean, 2025 Next on the show, researchers were able to

First up on the podcast, the Vera C. Rubin Observatory is just coming online, and once fully operational, it will take a snapshot of the entire southern sky every 3 days. Producer Meagan Cantwell guides us through Staff Writer Daniel Clery’s trip to the site of the largest camera ever made for astronomy. Next on the show, probing the impact of plastic bag regulations. Environmental economist Anna Papp joins host Sarah Crespi to discuss her work comparing litter collected by shore cleanup efforts before and after the onset of plastic bag

First up on the podcast, Staff Writer Erik Stokstad talks with host Sarah Crespi about how scientists are probing the world’s hottest forests to better understand how plants will cope with climate change. His story is part of a special issue on plants and heat, which includes reviews and perspectives on the fate of plants in a warming world. Next on the show, “convergent” antibodies may underlie the growing number of people allergic to peanuts. Sarita Patil, co-director of the Food Allergy Center at Massachusetts General Hospital and assistant professor at

First up on the podcast, we hear from Staff Writer Paul Voosen about the tricky problem of regional climate prediction. Although global climate change models have held up for the most part, predicting what will happen at smaller scales, such as the level of a city, is proving a stubborn challenge. Just increasing the resolution of global models requires intense computing power, so researchers and city planners are looking to other approaches to find out what’s in store for cities. Next on the show, a visit to Michigan’s Upper Peninsula, where

First up on the podcast, Online News Editor Michael Greshko joins host Sarah Crespi to talk about stories set high above our heads. They discuss capturing fungal spores high in the stratosphere, the debate over signs of life on the exoplanet K2-18b, and a Chinese contender for world’s oldest star catalog. Next on the show, a look into long-standing questions on why and how our bodies respond to tickling. Producer Meagan Cantwell talks to Konstantina Kilteni, an assistant professor at the Donders Institute for Brain, Cognition and Behaviour and the Department

First up on the podcast, freelance journalist Zack Savitsky joins host Sarah Crespi to talk about the strange metal state. Physicists are probing the behavior of electrons in these materials, which appear to behave like a thick soup rather than discrete charged particles. Many suspect insights into strange metals might lead to the creation of room-temperature superconductors, highly desired materials that promise lossless energy delivery and floating trains. A few years ago, researcher Nora Zannoni came on the show to talk about our oxidation fields: zones of highly reactive radicals our

First up on the podcast, freelance journalist Jonathan Moens talks with host Sarah Crespi about a forensic test called brain electrical oscillation signature (BEOS) profiling, which police in India are using along with other techniques to try to tell whether a suspect participated in a crime, despite these technologies’ extremely shaky scientific grounding. Next on the show, scientists have recently made strides in our understanding of horses, from identifying the mutations that make horses amazing athletes to showing how climate shaped intercontinental horse migrations 50,000 years ago. Science life sciences editor

First up on the podcast, producer Meagan Cantwell worked with the Science News team to review how the first 100 days of President Donald Trump’s administration have impacted science. In the segment, originally produced for video, we hear about how the workforce, biomedical research, and global health initiatives all face widespread, perhaps permanent damage, with News staffers David Malakoff, Jocelyn Kaiser, and Rachel Bernstein. Next on the show, acoustical analysis of ancient music from Greece and Rome shows different musical notation styles for different instruments. Dan Baciu, a professor at the

First up on the podcast, Contributing Correspondent Andrew Curry talks with host Sarah Crespi about his visit to 17th century crypts under an old hospital in Italy. Researchers are examining tooth plaque, bone lesions, and mummified brains to learn more about the health, diet, and drug habits of Milan’s working poor 400 years ago. Next on the show, a mechanism for driving growth in fat stores with age. Or, the source of the “dad bod” trope. Producer Zakiya Whatley talks with Qiong “Annabel” Wang, associate professor in the department of molecular

First up on the podcast, bringing Gregor Mendel’s peas into the 21st century. Back in the 19th century Mendel, a friar and naturalist, tracked traits in peas such as flower color and shape over many generations. He used these observations to identify basic concepts about inheritance such as recessive and dominant traits. Staff Writer Erik Stokstad talks with host Sarah Crespi about the difficulty of identifying genes for these phenotypes all these years later. We also hear some other stories from the plant world, including evidence that wavy fields are more

First up on the podcast, Online News Editor David Grimm joins host Sarah Crespi to talk about how an Egyptian cult that killed cats may have also tamed them. Next on the show, we hear about when the aurorae wandered. About 41,000 years ago, Earth’s magnetic poles took an excursion. They began to move equatorward and decreased in strength to one-tenth their modern levels. Agnit Mukhopadhyay, a research affiliate at the University of Michigan, talks about how his group mapped these magnetic changes, and what it would be like if such

First up on the podcast, ScienceInsider Editor Jocelyn Kaiser joins host Sarah Crespi to discuss big changes in science funding and government jobs this month, including an order to cut billions in contracts, lawsuits over funding caps and grant funding cancellations, and mass firings at the National Institutes of Health. Next on the show, taking sleep loss more seriously. Jennifer Tudor, an associate professor of biology at Saint Joseph’s University, talks about how skipping out on sleep has many metabolic consequences, from reducing protein synthesis in our brains to making our

Geoengineering experiments face an uphill battle, and a way to combat the pregnancy complication hyperemesis gravidarum First up on the podcast, climate engineers face tough conversations with the public when proposing plans to test new technologies. Freelance science journalist Rebekah White joins host Sarah Crespi to discuss the questions people have about these experiments and how researchers can get collaboration and buy-in for testing ideas such as changing the atmosphere to reflect more sunlight or altering the ocean to suck up more carbon dioxide. Next on the show, hyperemesis gravidarum—severe nausea

First up this week, urban wildfires raged in Los Angeles in January. Contributing Correspondent Warren Cornwall discusses how researchers have come together to study how pollution from buildings at such a large scale impacts the environment and health of the local population. Next on the show, Mingze Chen, a graduate student in the mechanical engineering department at the University of Michigan, talks with host Sarah Crespi about the challenges of placing artificial intelligence in small robots. As you add more sensors and data, the demand for computing power and energy goes

First up this week, Newsletter Editor Christie Wilcox joins host Sarah Crespi to discuss stories from the sea, including why scientists mounted cameras on seabirds, backward and upside-down; newly discovered organisms from the world’s deepest spot, the Mariana Trench; and how extremely venomous, blue-lined octopus males use their toxin on females in order to mate. Read more or subscribe at science.org/scienceadviser. Next on the show, J. Chris McKnight, a senior research fellow in the Sea Mammal Research Unit at the University of St. Andrews, talks about testing free-living seals to see

First up this week, science policy editor Jocelyn Kaiser joins host Sarah Crespi to discuss the latest news about the National Institutes of Health—from reconfiguring review panels to canceled grants to confirmation hearings for a new head, Jay Bhattacharya. Next, although cochlear implants can give deaf children access to sound, it doesn’t always mean they have unrestricted access to language. Producer Meagan Cantwell talks with Contributing Correspondent Cathleen O’Grady about why some think using sign language with kids with cochlear implants gives them the best chance at communicating fully and fluently.

First up this week, International News Editor David Malakoff joins host Sarah Crespi to discuss the most recent developments in U.S. science under Donald Trump’s second term, from the impact of tariffs on science to the rehiring of probationary employees at the National Science Foundation. Next, we tackle the question of extra-pair paternity in people—when marriage or birth records of parentage differ from biological parentage. Contributing Correspondent Andrew Curry writes about researchers looking into the question of how often children are genetically unrelated to their presumed fathers by using genealogy and

First up this week, Kata Karáth, a freelance journalist based in Ecuador, talks with host Sarah Crespi about an effort to identify traditionally prepared shrunken heads in museums and collections around the world and potentially repatriate them. Next, genetically modified Bt corn has helped farmers avoid serious crop damage from insects, but planting it everywhere all the time can drive insects to adapt to the bacterial toxin made by the plant. Christian Krupke, an entomology professor at Purdue University, talks about the economics of planting Bt corn and how farmers could

First up this week, researchers face impossible decisions as U.S. aid freeze halts clinical trials. Deputy News Editor Martin Enserink joins host Sarah Crespi to talk about how organizers of U.S. Agency for International Development–funded studies are grappling with ethical responsibilities to trial participants and collaborators as funding, supplies, and workers dry up. Next, freelance science journalist Sandeep Ravindran talks about creating tiny machine learning devices for bespoke use in the Global South. Farmers and medical clinics are using low-cost, low-power devices with onboard machine learning for spotting fungal infections in

First up this week, International News Editor David Malakoff joins the podcast to discuss the big change in NIH’s funding policy for overhead or indirect costs, the outrage from the biomedical community over the cuts, and the lawsuits filed in response. Next, what can machines understand about pets and livestock that humans can’t? Christa Lesté-Lasserre, a freelance science journalist based in Paris, joins host Sarah Crespi to discuss training artificial intelligence on animal facial expressions. Today, this approach can be used to find farm animals in distress; one day it may

First up this week, Staff Writer Paul Voosen joins host Sarah Crespi to discuss mapping clogs and flows in Earth’s middle layer—the mantle. They also talk about recent policy stories on NASA’s reactions to President Donald Trump’s administration’s executive orders. Next, the mantis shrimp is famous for its powerful club, a biological hammer it uses to crack open hard shells. The club applies immense force on impact, but how does it keep itself together blow after blow? Nicolas Alderete is an associate researcher at the National Institute of Standards and Technology,

First up this week, we catch up with the editor of ScienceInsider, Jocelyn Kaiser. She talks about changes at the major science agencies that came about with the transition to President Donald Trump’s second administration, such as hiring freezes at the National Institutes of Health and the United States’s departure from the World Health Organization. Next, producer Kevin McLean talks with Dan Kaplan, a professor in the departments of immunology and dermatology at the University of Pittsburgh, about why it sometimes pays to scratch that itch. It turns out scratching may

First up this week, although long touted as a green fuel, the traditional approach to hydrogen production is not very sustainable. Staff writer Robert F. Service joins producer Meagan Cantwell to discuss how researchers are aiming to improve electrolyzers—devices that split water into hydrogen and oxygen—with more efficient and durable designs. Next, Robert Rogers, who was a postdoctoral fellow in molecular biology at Massachusetts General Hospital when this work was conducted, talks with host Sarah Crespi about the idea of chronic hypoxia as medicine. Efficacious in mouse disease models, the big

First up this week, growing numbers of Valley fever cases, also known as coccidioidomycosis, has researchers looking into the disease-causing fungus. They’re exploring its links to everything from drought and wildfires to climate change and rodent populations. Staff Writer Meredith Wadman joins host Sarah Crespi to discuss her visit to a Valley fever research site in the desert near Bakersfield, California, where researchers are sampling air and soil for the elusive fungus. Next up, scientists are trying to pin down when meat eating became a habit for human ancestors. It’s long

First up this week, as preprint publications ramped up during the beginning of the COVID-19 pandemic, so did media attention for these pre–peer-review results. But what do the readers of news reports based on preprints know about them? Associate News Editor Jeff Brainard joins host Sarah Crespi to discuss studies that look at the public perception of preprints in the news and how to inject skepticism into stories about them. Next, placing tiny tags on bats to follow them across central Europe. Former Science intern Edward Hurme—now a postdoctoral fellow in

First up this week, Newsletter Editor Christie Wilcox talks with host Sarah Crespi about truffle hunting for science. Wilcox accompanied Heather Dawson, a Ph.D. student at the University of Oregon, and her sister Hilary Dawson, a postdoctoral researcher at Australian National University, on a hunt for nonculinary truffles—the kind you don’t eat—with the help of a specially trained dog. These scientists and their dog are digging up many new species of these hard-to-find fungi with the ultimate aim of cataloging and conserving them. Next, producer Ariana Remmel talks with R. Keller

First up this week, Online News Editor David Grimm shares a sampling of stories that hit big with our audience and staff in this year, from corpse-eating pets to the limits of fanning ourselves. Next, host Sarah Crespi tackles some unfinished business with Producer Kevin McLean. Three former guests talk about where their research has taken them since their first appearances on the podcast. Erick Lundgren, a researcher at the Centre for Open Science and Research Synthesis at the University of Alberta, revisits his paper on donkeys that dig wells in

First up this week, Breakthroughs Editor Greg Miller joins producer Meagan Cantwell to discuss Science’s 2024 Breakthrough of the Year. They also discuss some of the other scientific achievements that turned heads this year, from ancient DNA and autoimmune therapy, to precision pesticides, and the discovery of a new organelle. Next, host Sarah Crespi is joined by news staffers to catch up on threads they’ve been following all year. First a bumpy road for certain medicines. Editor Kelly Servick discusses the regulatory hurdles for psychedelic drugs and immunotherapy treatments for Alzheimer’s

First up this week, freelance science journalist Sofia Moutinho joins host Sarah Crespi to discuss making open-access journals from South and Latin America visible to the rest of the world by creating platforms that help with the publishing process and discovery of journal articles. This story is part of a News series about global equity in science. Next on the show, departing Physical Sciences Editor Brent Grocholski discusses highlights from his career at Science, particularly his work on cooling technologies. Related papers: ● A self-regenerative heat pump based on a dual-functional

First up this week, making electronics greener with leaves. Host Sarah Crespi talks with Newsletter Editor Christie Wilcox about using the cellulose skeletons of leaves to create robust, biodegradable backings for computer chips. This sustainable approach can be used for printing circuits and making organic light-emitting diodes and if widely adopted, could massively reduce the carbon footprint of electronics. Next on the show, Kevin Hatala, a biology professor at Chatham University, joins producer Meagan Cantwell to discuss fossil footprints unearthed in the Turkana Basin of Kenya. A 13-step long track with

First up this week, where on Earth do people live the longest? What makes those places or people so special? Genes, diet, life habits? Or could it be bad record keeping and statistical flukes? Freelance science journalist Ignacio Amigo joins host Sarah Crespi to discuss the controversies around so-called blue zones—regions in the world where clusters of people appear to have extreme longevity. Next on the show, producer Kevin Mclean talks with Dorian Houser, director of conservation biology at the National Marine Mammal Foundation. Houser and colleagues temporarily captured juvenile minke

First up this week, a ship that flips for science. Sean Cummings, a freelance science journalist, joins host Sarah Crespi to talk about the resurrection of the Floating Instrument Platform (R/V FLIP), a research vessel built by the U.S. Navy in the 1960s and retired in 2023. FLIP is famous for turning vertically 90° so the bulk of the long ship is underwater, stabilizing it for data gathering. Additional audio from Scripps Institution of Oceanography. Watch FLIP flipping here. Next on the show, viewing past lives using bones from medieval London

First up this week, Staff Writer Paul Voosen talks with host Sarah Crespi about his travel to meet up with a lead researcher in the field, Folarin Kolawole, and the subtle signs of rifting on the African continent. Next on the show, Nik Dennler, a Ph.D. student in the Biocomputation Group at the University of Hertfordshire and the International Center for Neuromorphic Systems at Western Sydney University, discusses speeding up electronic noses. These fast sniffing devices could one day be mounted on drones to help track down forest fires before they

First up this week, Contributing Correspondent Kai Kupferschmidt joins host Sarah Crespi to discuss the difficulties of studying misinformation. Although misinformation seems like it’s everywhere, researchers in the field don’t agree on a common definition or shared strategies for combating it. Next, what can Wikipedia tell us about human curiosity? Dani Bassett, a professor in the department of bioengineering at the University of Pennsylvania, observed three different curiosity styles in people browsing the online encyclopedia—hunter, busybody, and dancer. They explain characteristics of each style and how which approach you use could

Using robots to study evolution, the last installment of our series of books on a future to look forward to, and did reintroducing wolves really restore an ecosystem? First up this week, a new study of an iconic ecosystem doesn’t support the “landscape of fear” concept. This is the idea that bringing back apex predators has a huge impact on the behavior of their prey, eventually altering the rest of the ecosystem. Host Sarah Crespi talks with Contributing Correspondent Virginia Morell about the findings. Next, using bioinspired robotics to explore deep

First up this week, host Sarah Crespi talks to Jon Chu, a presidential young professor in international affairs at the Lee Kuan Yew School of Public Policy at the National University of Singapore, about how people around the world define democracy. Does democracy mean elections, freedom of the press, social mobility, or something else? Chu’s team found there was common ground across six countries. In many places with backsliding democracies, leaders may be tempted to change the definition of democracy to their own ends—this study suggests the people they rule won’t

First up this week, we celebrate 20 years of graphene—from discovery, to hype, and now reality as it finally finds its place in technology and science. Science journalist Mark Peplow joins host Sarah Crespi to discuss graphene’s bumpy journey. Next, producer Meagan Cantwell talks with Seth Darling, chief science and technology officer for the Advanced Energy Technologies Directorate at Argonne National Laboratory, about two new ways to harvest lithium from water. One approach harnesses sunlight to pull water up through a membrane and collect lithium, whereas the other uses an electrochemical

First up this week, online editor David Grimm joins host Sarah Crespi to talk about how cats think about their own bodies. Do cats think of themselves as a liquid, as much the internet appears to believe? New experiments suggest they may—but only in one dimension. Next, freelance producer Ariana Remmel is joined by Ted Schultz, a research entomologist at the Smithsonian Institution, to discuss the evolution of ant-fungus farming. It turns out, ants and fungus got together when the earth was going through some really tough times around 66 million

The gene variant APOE4 is finally giving up some of its secrets, how putting dead trees underground could make carbon sequestration cheap and scalable, and the latest in our series of books on an optimistic future First up this week, Staff Writer and Editor Jocelyn Kaiser joins host Sarah Crespi to discuss APOE4, a gene linked with a higher risk of Alzheimer’s disease. They talk about new research into why APOE4 might be a good target for preventing or treating this dreaded neurodegenerative disease. Next, Ning Zeng, a professor in the

First up this week, a preview of a NASA mission to Jupiter’s icy moon Europa. Science journalist Robin Andrews joins host Sarah Crespi to talk about the Clipper mission and what it could reveal about the habitability of the world that lies beneath Europa’s chaotic, icy surface. Next, what does it feel like to be a rat? This week Science has a special issue on rats, focusing on their contributions to science, their history as invasives and disease carriers, and more. But Inbal Ben-Ami Bartal, a professor in the School of

Why don’t we know what is happening with hail? It’s extremely destructive and costs billions of dollars in property damage every year. We aren’t great at predicting hailstorms and don’t know much about how climate change will affect them, but scientists are working to change that. News Intern Hannah Richter joins host Sarah Crespi to discuss deploying new technologies in this long-neglected area of research. Next on the show, ultrasound—it’s not just for looking inside the body anymore. Meaghan O’Reilly is a senior scientist in physical sciences at the Sunnybrook Research

The latest in our series on global equity in science, and how better memory helps chickadees live longer First up this week, as part of our series on global equity in science, Contributing Correspondent Vaishnavi Chandrashekhar joins host Sarah Crespi to talk about an initiative in India intended to increase education about early “Indian knowledge systems” amid concerns about homogenization and misinformation. Next, producer Kevin McLean climbs a mountain to visit a test bed for intelligence. He met up with Joe Welklin and Vladimir Pravosudov of the University of Nevada, Reno

First up this week on the podcast, the latest conservation news with Staff Writer Erik Stokstad. Stokstad and host Sarah Crespi talk about the fate of snow crabs in the Bering Sea, how much we have been overestimating fishing stocks worldwide, and invasive snakes in Guam that bite off more than they can chew. Next, a fungus takes the wheel. Anand Mishra, a research associate in the department of mechanical and aerospace engineering at Cornell University, discusses a method of integrating electronics with fungal cells in a biohybrid robot. By using

First up this week on the show, uncounted kilometers of fences are strung across the globe. Researchers know they interfere with wildlife migrations and sometimes make finding food and safety difficult for animals. But they don’t know where all these fences are. Freelancer science journalist Christine Peterson joins host Sarah Crespi to discuss how artificial intelligence and aerial photos could help create fence inventories and eventually reopen spaces for native species. Next, Azizi Seixas, interim chair of the University of Miami Miller School of Medicine’s department of informatics and health data

First up this week, Deputy News Editors Elizabeth Culotta and Shraddha Chakradhar join host Sarah Crespi to talk about the launch of a new series highlighting the latest in postcolonial science. They cover how researchers around the world, but especially in the Global South, are reckoning with colonial legacies and what is in store for the rest of the series. Next, producer Meagan Cantwell talks with Mario Fischer-Gödde, a research scientist at the University of Cologne about the origins of the giant asteroid thought to have killed off the dinosaurs 66

Researchers debate if humidity makes heat more deadly, and finding excess diabetes cases in Ukrainian people that were born right after the 1930s famine First up this week, which is worse: the heat or the humidity? Staff writer Meredith Wadman joins host Sarah Crespi to talk about conflicting reports on the risk of increased mortality when humidity compounds heat, and how to resolve the debate in the field. Next, LH Lumey, a professor of epidemiology at the Columbia University Medical Center, discusses what the catastrophe of a famine can teach us

First up this week, we hear about caves on the Moon, a shake-up at Pompeii, and the iron-lined teeth of the Komodo dragon. Reporter Phie Jacobs joins host Sarah Crespi to discuss these news stories and more from our daily newsletter, ScienceAdviser. Next on the show, electron microscopes allow us to view a world inaccessible to light—at incredible resolution and tiny scales. But bombarding samples with a beam of electrons has downsides. The high-energy electrons used for visualizing minute structures can cause damage to certain materials. Jonathan Peters, a research fellow

Tackling air pollution—indoors and outdoors, how burned-up satellites in the atmosphere could destroy ozone, and the latest in our series of books on a future to look forward to First up this week, Science Senior Editor Michael Funk joins host Sarah Crespi to talk about the magazine’s special issue on air pollution. The two discuss the broad scope of air pollution, from home cooking to transmissible disease. Next, how burned-up satellites may cause pollution problems as megaconstellations take to the skies. Staff Writer Daniel Clery talks about how metals from deorbiting

First up this week, Staff Writer Adrian Cho talks with host Sarah Crespi about a fusion company that isn’t aiming for net energy. Instead, it’s looking to sell off the high-energy neutrons from its fusion reactors for different purposes, such as imaging machine parts and generating medical isotopes. In the long run, the company hopes to use money from these neutron-based enterprises for bigger, more energetic reactors that may someday make fusion energy. Next, we hear from Tian Du, a Ph.D. candidate in the Dr John and Anne Chong Lab for

Rodenticides are building up inside unintended targets, including birds, mammals, and insects; and bringing bioacoustics and artificial intelligence together for ecology First up this week, producer Kevin McLean and freelance science journalist Dina Fine Maron discuss the history of rodent control and how rat poisons are making their way into our ecosystem. Next on the episode, host Sarah Crespi talks with Jeppe Rasmussen, a postdoctoral fellow in the behavior ecology group at the University of Copenhagen, about why researchers are training artificial intelligence to listen for seals, frogs, and whales. Additional

First up this week, guest host Kevin McLean talks to freelance writer Andrew Zaleski about recent advancements in the world of synthetic blood. They discuss some of the failed attempts over the past century that led many to abandon the cause altogether, and a promising new option in the works called ErythroMer that is both shelf stable and can work on any blood type. Next on the episode, producer Zakiya Whatley talks to Aaron Weimann from the University of Cambridge about the evolutionary history of the deadly bacterial pathogen Pseudomonas aeruginosa.

Guest host Meagan Cantwell talks to Staff Writer Erik Stokstad about a new weapon against crop-destroying beetles. By making pesticides using RNA, farmers can target pests and their close relatives, leaving other creatures unharmed. Next, freelance producer Katherine Irving talks to hydrologist Craig Brinkerhoff about a recent analysis of ephemeral streams—which are only around temporarily—throughout the United States. Despite their fleeting presence, Brinkerhoff and his colleagues found these streams play a major role in keeping rivers flowing and clean. Brinkerhoff is currently a postdoctoral fellow at Yale University, and completed this

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

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

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

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

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

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

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