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Brain fun for curious people.

Science Friday and WNYC Studios


    • May 9, 2025 LATEST EPISODE
    • weekdays NEW EPISODES
    • 33m AVG DURATION
    • 820 EPISODES

    4.3 from 4,940 ratings Listeners of Science Friday that love the show mention: science friday, thank you ira, love ira, individual segments, thanks ira, chapter markers, ira and the team, talk of the nation, one file, lot of science, weekly science, like the new format, flora, ira's, new science, world of science, able to download, science news, long podcasts, science nerd.


    Ivy Insights

    The Science Friday podcast is a must-listen for anyone interested in science and its impact on our daily lives. Hosted by the charismatic Ira Flatow, this show provides an engaging and informative platform to explore a wide range of scientific topics. The best aspect of this podcast is the depth and breadth of the content covered. Each episode delves into multiple scientific subjects, from space exploration to biology to climate change. The guests are experts in their fields and offer unique insights that keep listeners engaged and eager to learn more. The format of the show allows for in-depth discussions and thought-provoking conversations, making it an excellent resource for both casual listeners and science enthusiasts.

    One of the standout features of The Science Friday podcast is its commitment to presenting diverse voices and perspectives. The show often highlights underrepresented voices in science, giving a platform to scientists from different backgrounds and cultures. This not only enriches the content but also serves as a reminder that science is a global endeavor that benefits from diversity. Additionally, the call-in segments provide an opportunity for listeners to engage with the topics discussed, adding another layer of interactivity to the show.

    However, there are some aspects of the podcast that could be improved. One criticism is that occasionally certain topics may not receive enough time or depth due to time constraints. With so many fascinating subjects covered each week, it can be frustrating when a particularly interesting topic feels rushed or glossed over. Additionally, while the episodic format allows for flexibility in listening preferences, some longtime listeners miss the longer format where they could enjoy a complete show without interruption.

    In conclusion, The Science Friday podcast is a valuable resource for anyone curious about science and its impact on our world. With its captivating discussions, diverse range of topics, and commitment to showcasing different perspectives, it offers an engaging listening experience that educates and entertains. While there may be minor flaws in terms of time constraints or format changes, overall, this podcast remains a top choice for science enthusiasts seeking to expand their knowledge and understanding of the world around them.



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    Latest episodes from Science Friday

    Cuts To NASA And A Fast-Track For Deep Sea Mining

    Play Episode Listen Later May 9, 2025 25:11


    Proposed budget cuts for NASA would jeopardize space research. And an executive order could change the political tides for deep sea mining.On May 2, the Trump Administration proposed a 24% budget cut for NASA. It would slash funding for science while setting billions aside for initiatives to send humans to the moon and Mars. New Scientist editor Sophie Bushwick joins us to talk about this, as well as other news in science, like how many U.S. cities are sinking, the search for geologic hydrogen within mountains, the first photos of free-floating atoms, Chinese poetry about porpoises, and cicadas turned into speakers.And, President Trump recently issued an executive order that would fast-track access for deep sea mining. Soon after, a Canadian company called The Metals Company submitted the first application for NOAA to review. This has raised environmental and climate concerns, as well as geopolitical tensions. Ocean geologist Sandor Mulsow breaks down what's at stake for the ocean.Guests:Sophie Bushwick, senior news editor at New Scientist in NYCDr. Sandor Mulsow, marine geologist at the Austral University of ChileTranscript will be available after the show airs on sciencefriday.com.  Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    How Do Bacteria Talk To Each Other?

    Play Episode Listen Later May 8, 2025 23:30


    Bacteria have been around for billions of years. Could they have come up with complex behaviors that we just don't understand yet? Could they have their own language? Their own culture? Their own complex societies playing out right under, and in, our noses? Microbiologist Bonnie Bassler has been studying these questions for more than 30 years. She talks with Host Flora Lichtman about the wild world of bacterial communication, and how understanding microbes could help us understand ourselves.Guest: Dr. Bonnie Bassler, microbiologist at Princeton UniversityTranscript will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Functional Fashion From An Artist And A Caterpillar

    Play Episode Listen Later May 7, 2025 18:45


    A passion for fashion among the “bone collector caterpillar,” who wears a coat of body parts, and an artist who makes fabrics that remember.We inch into the world of extreme outerwear with the newly-discovered “bone collector caterpillar,” which wears a coat of many co…llected body parts. Why, Hanipillar Lecter? Entomologist Dan Rubinoff, who along with his team found the species on a mountainside in Oahu, Hawaii, shares the juicy details. And, what if clothes could remember our experiences? Computer programmer and artist Laura Devendorf is making textiles embedded with sensors and other tech that can tell us about our lives. One dress she made recorded her physical interactions with her kids—and played them back. Laura joins Host Flora Lichtman and spins a yarn about the future of e-textiles. Transcript will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Ancient Iguanas Floated 5,000 Miles Across The Pacific | A Pregnant Icthyosaur Fossil

    Play Episode Listen Later May 6, 2025 18:58


    Millions of years ago, iguanas somehow got from North America to Fiji. Scientists think they made the trip on a raft of fallen vegetation. Also, the marine reptile's fossilized fetus is cluing paleontologists into the lives of ancient sea creatures.Ancient Iguanas Floated 5,000 Miles Across The PacificIf you picture iguanas, you might imagine them sunbathing on hot sand in the Caribbean or skittering around the Mojave Desert. But far, far away from where these iguanas are found is another group of iguanas living on the islands of Fiji and Tonga in the South Pacific—closer to New Zealand than the Americas. And it raises the question: How in the world did these iguanas end up all alone, on the other side of the ocean? In a study published in Proceedings of the National Academy of Sciences in March, scientists suggest that millions of years ago, iguanas hitched a ride on a raft and accidentally sailed all the way across the ocean before washing ashore and starting a new life. Host Flora Lichtman discusses the iguanas' intrepid adventure with lead author Dr. Simon Scarpetta, evolutionary biologist and assistant professor at the University of San Francisco in California.Meet Fiona, The Pregnant Icthyosaur FossilIn the Patagonia region of Chile, Torres del Paine National Park is a graveyard of ichthyosaurs—ancient, dolphin-like reptiles that roamed the oceans when dinosaurs dominated the land. Nearly 90 of these giant reptiles' fossils have been found amongst the glaciers. But the standout in the bone heap is Fiona, an ichthyosaur that lived 131 million years ago. She's in pristine condition, the only fully preserved ichthyosaur in Chile. And, she died pregnant. She's teaching paleontologists about the evolution of her species. And some of those findings were recently published in the Journal of Vertebrate Paleontology. Host Flora Lichtman talks with lead author Dr. Judith Pardo-Pérez, paleontologist at the University of Magallanes in Chile.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Are There Things That We Know We Can't Know?

    Play Episode Listen Later May 5, 2025 18:24


    In “Into the Unknown,” an astronomer explores the mysteries of the cosmos and the limits of what science can test.What is time? If the universe is expanding, what is it expanding into? What happened just before the Big Bang?Some of the most head-scratching ideas in physics strain the limits of what science can test. In her book Into the Unknown: The Quest to Understand the Mysteries of the Cosmos, astronomer Dr. Kelsey Johnson describes some of those concepts, and sketches out ways to try to wrap your brain around them. Johnson joins Host Ira Flatow to talk about the limits of scientific inquiry, and what mysteries lie at the limits of science.Transcripts for each segment will be available after the show airs on sciencefriday.com.  Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Two Steps Forward For Meat Alternatives

    Play Episode Listen Later May 2, 2025 16:18


    Scientists bring us a lab-grown chicken nugget and texturally accurate, plant-based calamari. We'll bite.There's a movement in the world of science to find alternatives to meat and dairy products that don't involve killing animals. Two avenues for this are by using animal cells in a lab, or going plant-based. Two breakthroughs in this field of food science were published in journals recently: the largest lab-grown chicken nugget and a plant-based fried calamari that tastes like the real thing.Producer Kathleen Davis joins Host Flora Lichtman to discuss these morsels of research and other science news of the week, including mandatory composting hitting the largest U.S. city, why human wounds heal slower than our primate cousins, and the disinfecting limitations of at-home washing machines. Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    How Death Metal Singers Make Their Extreme Vocalizations | Regional Allergies

    Play Episode Listen Later May 1, 2025 22:18


    Being able to belt out a tune like Adele or Pavarotti is not just about raw talent. The best singers in the world have to work on their technique—like how to control their breath and develop the stamina to hit note after note for a two-hour concert. But pop stars and opera singers aren't the only vocalists who have figured out how to harness their voices for maximum impact.Death metal vocalists also train their voices to hit that unique guttural register. And those iconic screams are not as easy to master as they might seem.Vocal scientists at the University of Utah are now bringing death metal singers into the lab to try to understand how they make their extreme vocalizations. What they're finding is not only insightful for metalheads, but might also help improve treatment for people with some types of vocal injuries. Host Flora Lichtman talks with Dr. Amanda Stark, speech pathologist and vocology researcher at the University of Utah, and Mark Garrett, vocal coach and lead singer of the band Kardashev.Read the whole story at sciencefriday.com.Also, we share a follow-up to our story about seasonal allergies based on a listener's question about her family's allergies.Transcripts for each segment will be available after the show airs on sciencefriday.com.   Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    A New Book On The Horrifying, Creative World Of Insect Zombies

    Play Episode Listen Later Apr 30, 2025 18:27


    It's zombie season! At least if you're watching the new season of the fungal thriller “The Last of Us,” airing right now on Max, which chronicles what happens after a fungus turns most of humanity into zombies.It's fiction for us, but for some organisms on the planet, it's more like a documentary. The fungus that zombifies humanity in the show is based on Ophiocordyceps, a real fungal group that infects ants, takes over their brains and bodies, and turns them into spore factories.But this isn't the only example of real-life zombies. Science writer Mindy Weisberger found a whole book's worth of stories about horrifying and creative zombies and zombie-makers that inhabit the Earth, which she writes about in Rise of the Zombie Bugs: The Surprising Science of Parasitic Mind-Control.Host Flora Lichtman sits down with Weisberger to talk about the creepy and inventive lifestyles of these parasites, and how studying these zombifiers can teach us about ourselves.Read an excerpt from Rise Of The Zombie Bugs.Transcripts for each segment will be available after the show airs on sciencefriday.com.  Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Untangling The Mind-Body Connection In Chronic Pain

    Play Episode Listen Later Apr 29, 2025 18:38


    Research suggests that better understanding the psychological and neurological components of chronic pain may lead to better treatments.Chronic pain is remarkably common: Roughly 20% of adults in the US live with it. And people with chronic pain are more likely to have depression, anxiety, and substance abuse disorders. But this relationship between physical and mental health is not as straightforward as you might think, and there's still a stigma attached to neuro-psychological causes of chronic pain.The latest research suggests that untangling the connections between mind and body is a key part of developing better treatments for people with chronic pain. Now, a new psychological treatment called pain reprocessing therapy has shown initial success in eliminating back pain in research participants.Producer Shoshannah Buxbaum joins Host Flora Lichtman to share her reporting on the intersection of mental health and chronic pain.Transcript for this story will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    A Precisely Pointed Laser Allows People To See New Color ‘Olo'

    Play Episode Listen Later Apr 28, 2025 18:36


    Researchers isolated one kind of cone in the eye and aimed lasers at it to allow subjects to see a super vibrant teal shade they call “olo.”Think about the colors of the world around you—the blue of a cloudless sky, the green of a new leaf, the blazing red of a tulip's petals. We see these colors because of the way our eyes work. But what if we could change how our eyes respond to light, and present them with light in a form they'd never encounter in the natural world? What would we see?This week, researchers reported in the journal Science Advances that by using precisely aimed laser light, they were able to selectively target just one of the three types of color-sensing cones in the human retina. The cone, dubbed “M” because it responds to medium wavelengths of light, is normally stimulated at the same time as cones that respond to longer wavelength reddish light, or shorter wavelength bluish light. But after mapping the location of the cones in several subjects' eyes, the researchers were able to target just the M cones with one specific wavelength of green laser light—a condition that would never exist in nature. The result, they say, is a highly saturated bluish-green teal color unlike anything in the real world. The researchers named their new color “olo.”Study author James Fong, a computer science PhD student at University of California Berkeley, and his advisor, Dr. Ren Ng, join Host Flora Lichtman to talk about the project, and the possibility of expanding the limits of human color perception.Transcript for this story will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    $8 Billion Of Climate Tech Projects Were Canceled In 3 Months | A Chance To Study A Successful, Growing Wetland

    Play Episode Listen Later Apr 25, 2025 20:15


    How will market uncertainty and a lack of federal support for climate efforts affect the future of clean energy in the United States? Plus, many wetlands are disappearing, but Louisiana's “accidental” Wax Lake Delta is growing—and informing coastal restoration techniques.$8 Billion Of Climate Tech Projects Were Canceled In 3 MonthsIn the first three months of the Trump administration, officials have been aggressive in cancelling climate change related efforts, from enacting layoffs at large agencies to withdrawing from the Paris Climate Agreement and rescinding federal funding for green research and infrastructure.Joining Host Flora Lichtman to break down the changes we're starting to see in climate policy and clean tech on the ground is Casey Crownhart, senior climate reporter at MIT Technology Review. They also talk about other science news of the week, including a Florida-based startup that's recycling solar panels, an update on the growing measles outbreak in the Southwest, signs of a US science brain drain, humanoid robot participants in the Beijing half marathon, and how bats manage to drink on the fly.In Louisiana, A Chance To Study A Successful, Growing WetlandAmid the rapid erosion of Louisiana's coast, something hopeful is happening where the Atchafalaya River meets the Gulf. A flow of sediment from a decades-old river diversion has accidentally given birth to new wetlands.While that small delta is dwarfed by what's washing away all around it, researchers have gained knowledge from Wax Lake Delta that could help save the rest of Louisiana's coast and contribute to a better understanding of wetland science across the globe.Read more at sciencefriday.com.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Investigating Cat Behavior Through Genetics

    Play Episode Listen Later Apr 24, 2025 18:13


    With the help of cat owners, a new project investigates cats' biology and aims to link some of their behaviors to their genes.Calling all cat people: This one's for you. Despite humans' long history of welcoming felines into their homes and delis, research on cats lags far behind research on dogs. Now, scientists behind the project Darwin's Ark are working to close the cat gap by enlisting cat caretakers from across the country to submit a tuft of fur and answer a few questions about their feline's appearance, personality, and behaviors.Host Flora Lichtman talks about the project, as well as what we do and don't know about cat genetics, with Dr. Elinor Karlsson, chief scientific officer at Darwin's Ark, and director of the Vertebrate Genomics Group at the Broad Institute of MIT and Harvard Universities.Transcript for this segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Advances In Brain-Computer Interfaces For People With Paralysis

    Play Episode Listen Later Apr 23, 2025 18:37


    An evolving technology is changing the lives of people with paralysis: brain-computer interfaces (BCI). These are devices that are implanted in the brain and record neural activity, then translate those signals into commands for a computer. This allows people to type, play computer games, and talk with others just by thinking, allowing more freedom to communicate.For decades, this technology has looked like a person controlling a cursor on a screen. But this work has advanced, and in a recent breakthrough, a person with paralysis in all four limbs was able to move a virtual quadcopter with extreme precision by thinking about moving it with their fingers.Another area of BCI research involves speech. Recent work has shown promise in allowing people with vocal paralysis to “speak” through a computer, using old recordings to recreate the person's voice from before their paralysis.Joining Host Flora Lichtman to discuss the state of this technology, and where it may be headed, are Dr. Matthew Willsey, assistant professor of neurosurgery and biomedical engineering at the University of Michigan, and Dr. Sergey Stavisky, assistant professor of neurosurgery and co-director of the Neuroprosthetics Lab at the University of California, Davis.Transcript for this segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    A Blind Inventor's Life Of Advocacy And Innovation

    Play Episode Listen Later Apr 22, 2025 18:31


    In Connecting Dots: A Blind Life, inventor Josh Miele recounts his life story and path to becoming an accessibility designer.When inventor and scientist Josh Miele was 4 years old, a neighbor poured sulfuric acid on his head, burning and permanently blinding him. In his new book Connecting Dots: A Blind Life, Miele chronicles what happened afterwards, growing up as a blind kid, and how he built his career as an inventor and designer of adaptive technology.Host Flora Lichtman talks with Dr. Joshua Miele, an Amazon Design Scholar and MacArthur Fellow, or “Genius Grant” recipient. They talk about the inspiration for the book, how he grew into his career, and how disabled people need to be included in the technology revolution.Transcript for this segment will be available after the show airs on sciencefriday.com.  Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    The Lack Of Science In Road Design Is Deadly

    Play Episode Listen Later Apr 21, 2025 18:40


    Are traffic engineering decisions based on evidence-based research? Not as much as you might think.If you've seen a car crash on the side of the road, you might look at it and think that the person at fault is the driver. But how much blame should be shared by the people who designed those roads in the first place?Well, some traffic engineers are calling for the field to accept more blame for the crashes and the tens of thousands of annual fatalities that happen on our roads, including Dr. Wes Marshall, a professor of civil engineering at the University of Colorado Denver. In his book Killed By A Traffic Engineer: Shattering the Delusion that Science Underlies our Transportation System, he digs into the standards that have dictated traffic design for decades to find out exactly how much science they're based on. Spoiler alert: It's a lot less than you'd think.Host Flora Lichtman sits down with Dr. Marshall to talk about how we got to this point and what a safer version of our streets could look like.Transcript for this segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Possible Signature Of Life Detected On Exoplanet—Maybe | A Colossal Squid Video

    Play Episode Listen Later Apr 18, 2025 24:20


    The Webb Space Telescope picked up traces of dimethyl sulfide on planet K2-18b. On Earth, the molecule comes from microbes and phytoplankton. Also, researchers captured the first confirmed video of a colossal squid swimming in its natural habitat—almost 2,000 feet deep.Possible Signature Of Life Detected On Exoplanet—MaybeIn major galactic news, scientists may have detected possible signs of life on a planet right here in our galaxy. Is this one of the best hints we've gotten that alien life exists? Host Flora Lichtman gets into it with Anil Oza, the Sharon Begley Science Reporting Fellow at STAT and MIT. They discuss the latest in alien life, the Trump's administration cuts to the “indirect costs” of science funding, the largest map of a brain yet, and how salmon on anti-anxiety meds make bolder choices.A Colossal Squid Video? That's A Big DealThis week, scientists announced that they had captured the first confirmed video of a colossal squid in its natural habitat, recorded some 1,968 feet (600 m) below the ocean surface near the South Sandwich Islands. While there have been sightings of the colossal squid before, they have mainly been of individuals entangled with fishing equipment—and much of what is known about the elusive creatures comes from dead specimens.The video was captured by scientists on board the R/V Falkor (too) during an Ocean Census expedition searching for new marine life. As the remotely operated vehicle SuBastian descended towards the ocean floor, its cameras caught sight of a juvenile squid roughly one foot long (30 cm), and captured over a minute of high resolution video. The footage was later analyzed by experts and determined to be a colossal squid.Colossal squid are estimated to grow up to 23 feet (7 m) in length and can weigh as much as 1,100 pounds (500 kg), making them the heaviest invertebrate on the planet. They are not the same as the giant squid, an entirely different species, which can grow to be longer but are lighter and slimmer.Dr. Kat Bolstad, one of the squid experts the researchers sent their videos to for identification, joins Host Flora Lichtman to talk about the sighting.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    How ‘Science Interpreters' Make Hidden Science Visible

    Play Episode Listen Later Apr 17, 2025 18:53


    Imagine you're diving into a cell. You're paddling around in the cytoplasm, you're climbing up a mitochondria. If you're having a hard time picturing this, that's okay! There are professionals who do this for a living.We wanted to learn more from expert science interpreters, who take the results section of a research paper and translate it into something tangible, like a 40-foot dinosaur skeleton or a 3D animation of cellular machinery too small to see.At a live event in Salt Lake City in March, Host Flora Lichtman spoke with Dr. Janet Iwasa, head of the University of Utah's Animation Lab and director of the Genetic Science Learning Center; and Tim Lee, director of exhibits at the Natural History Museum of Utah, about how they bring these out-of-reach worlds to life.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    The Navajo Researcher Reviving A Desert Peach | A New Dino With Blade-Like Horns

    Play Episode Listen Later Apr 16, 2025 31:51


    Bringing back Southwest peach orchards won't be easy, but researchers are on the lookout for remaining trees—and they need help. And, the newly discovered Lokiceratops is challenging paleontologists' understanding of how horned dinosaurs evolved and existed together. How A Navajo Plant Researcher Is Reviving A Desert PeachWhen you think of states known for their peaches, Utah might not be at the top of your list. But there is a variety—the Southwest peach—that grows in this arid landscape, and Native communities have cultivated this tree since the 1600s. But many of the orchards were intentionally destroyed by colonizers hundreds of years ago, and the remaining trees are now scattered across the region.A local scientist and member of the Navajo Nation is on a mission to track down Southwest peach trees so we can learn more about how these peaches are so well-suited to grow in the desert.At a live event in Salt Lake City in March, Host Flora Lichtman spoke with Reagan Wytsalucy, plant scientist and assistant professor at Utah State University Extension in San Juan County, Utah. She researches traditional Native American crops, including the Southwest peach.Meet Lokiceratops, A Giant Dinosaur With Blade-Like HornsThe Intermountain West is a dinosaur nerd's dream because it's such a hotspot for fossils. Some of the most famous dino fossils in the world, like T. rex, triceratops, and stegosaurus can be found in western North America. So, of course, Science Friday couldn't go to Salt Lake City, Utah, without digging into some dinosaur science.At a live event in Salt Lake City in March, Host Ira Flatow spoke with the scientists behind the discovery of Lokiceratops, a large dinosaur with impressive horns that was unveiled in 2024. Dr. Mark Loewen, vertebrate paleontologist at the University of Utah and the Natural History Museum of Utah; and Savhannah Carpenter, paleontologist and school outreach coordinator at the Natural History Museum of Utah, discuss how they figured out Loki was a new dinosaur, the process of describing and naming the fossil, and what it taught them about dino evolution.Transcripts for each segment will be available after the show airs on sciencefriday.com.  Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    How Interjections Regulate Conversation | Saccharin For Antibiotic Resistant Bacteria

    Play Episode Listen Later Apr 15, 2025 18:28


    We are rounding up your questions about roads. What confounds you about traffic, or how interstates are laid out? Are there certain road design elements that ignite your road rage? Tell us about it: we've got a traffic engineer in the passenger seat this week, ready to answer your questions. Call us at (877) 4-SCIFRI or 877-472-4374.In this episode, utterances like “um,” “wow,” and “mm-hmm” aren't just fillers—they keep conversations flowing. Also, new research suggests the artificial sweetener saccharin could kill antibiotic resistant bacteria.Huh? The Valuable Role Of InterjectionsListen carefully to a spoken conversation and you'll notice that the speakers use a lot of little quasi-words—mm-hmm, um, huh? and the like—that don't convey any information about the topic of the conversation itself. For many decades, linguists regarded such utterances as largely irrelevant noise, the flotsam and jetsam that accumulate on the margins of language when speakers aren't as articulate as they'd like to be.But these little words may be much more important than that. A few linguists now think that far from being detritus, they may be crucial traffic signals to regulate the flow of conversation as well as tools to negotiate mutual understanding. That puts them at the heart of language itself—and they may be the hardest part of language for artificial intelligence to master.Read the rest of this article on sciencefriday.com.A Sweet New Treatment For Antibiotic Resistant Infections?Researchers have discovered that the artificial sweetener saccharin has powerful antimicrobial properties. A new study published in EMBO Molecular Medicine suggests that saccharin can actually kill antibiotic resistant bacteria by interfering with DNA replication and cell division. The researchers also concluded that, with the help of traditional antibiotics, saccharin could even be used as an effective wound treatment.Host Ira Flatow talks with study author Dr. Ronan McCarthy, professor in biomedical sciences and director of the Antimicrobial Innovations Centre at Brunel University of London.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Trump's Nominee For NASA Administrator Meets Congress

    Play Episode Listen Later Apr 14, 2025 15:01


    On Wednesday, the Senate Committee on Commerce, Science and Transportation heard testimony from Jared Isaacman, President Trump's nominee to lead NASA. During the confirmation hearing, Isaacman indicated a priority of sending humans to Mars—while maintaining the agency's plans to return people to the lunar surface.In response to a question from Senator Ted Cruz, Isaacman said “I don't think we have to make any tough trades here, Senator. I think if we can concentrate our resources at the world's greatest space agency, we don't have to make a binary decision of moon versus Mars, or moon has to come first versus Mars.” Senators questioned how a strategy involving both options would be possible under current funding levels, and stressed that a bipartisan law had codified the current approach of targeting the moon first, then Mars.The fate of the Artemis lunar exploration program has faced questions in the new administration. In his inaugural address, President Trump expressed a desire to send astronauts to Mars, but didn't mention the moon. Elon Musk, head of SpaceX and a favored advisor to the president, is in favor of prioritizing crewed Mars missions ahead of lunar programs. Under questioning, Isaacman repeatedly refused to say directly whether Musk had been present for his job interview with the President.Host Flora Lichtman talks with Senior Producer Charles Bergquist about the nomination and the path ahead for NASA. They also talk about other stories from the week in science, including the controversy over claims of a “de-extincted” dire wolf, advances in rapid bird flu sensors, and the detailed physics of a cup of pour-over coffee.Transcript for this segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    How Real Doctors Brought ‘The Pitt' To Life

    Play Episode Listen Later Apr 11, 2025 20:32


    We go inside the scientifically accurate ER world created for the TV show with one of its medical consultants.What is it actually like to work in an emergency room? To deal with overcrowded waiting rooms, a shortage of hospital beds, and a constant flow of life-and-death health conditions—while trying to maintain your sanity at the same time?That's the focus of “The Pitt,” a new medical drama on Max from the creators of “ER,” starring one of that show's key actors, all grown up: Noah Wyle. The first season takes place over a single shift, and each episode is one hour of that shift in real time. And medical professionals are praising the show for its accuracy.Joining Host Ira Flatow to talk about the accuracy of the show is one of its medical consultants, Dr. Sylvia Owusu-Ansah,  associate professor of pediatrics and emergency medicine at the University of Pittsburgh School of Medicine.Transcript for this segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    What Will Replace The International Space Station?

    Play Episode Listen Later Apr 10, 2025 17:24


    NASA is planning to decommission the International Space Station by the end of 2030. The ISS, which began operations in 2000, is reaching the end of its lifespan and has become costly to maintain. NASA selected SpaceX to construct a vehicle that would “de-orbit” the football field-sized station, pushing it down into the atmosphere where it'll burn up safely over the Pacific ocean.So what comes next? So far, NASA has awarded contracts to private companies including Axiom Space, Blue Origin, Northrup Grumman, and Starlab to support the research and development for commercial space stations which would help facilitate future research in orbit, among their own space tourism offerings. Next year, NASA will certify one or more of these companies to build at least one space station, where it'll then become one of many customers to purchase services from the new facilities.Loren Grush, space reporter at Bloomberg News, joins Host Ira Flatow to discuss who's in the running and how future space stations could differ from the one we know today. She also talks about her recent trip to the headquarters of Vast, one of the companies competing for this contract, to learn more about its cryptocurrency origins and its high-level recruitments from NASA and Apple.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    What Artificial General Intelligence Could Mean For Our Future

    Play Episode Listen Later Apr 9, 2025 29:14


    What happens when AI moves beyond convincing chatbots and custom image generators to something that matches—or outperforms—humans?Each week, tech companies trumpet yet another advance in artificial intelligence, from better chat services to image and video generators that spend less time in the uncanny valley. But the holy grail for AI companies is known as AGI, or artificial general intelligence—a technology that can meet or outperform human capabilities on any number of tasks, not just chat or images.The roadmap and schedule for getting to AGI depends on who you talk to and their precise definition of AGI. Some say it's just around the corner, while other experts point a few years down the road. In fact, it's not entirely clear whether current approaches to AI tech will be the ones that yield a true artificial general intelligence.Hosts Ira Flatow and Flora Lichtman talk with Will Douglas Heaven, who reports on AI for MIT Technology Review; and Dr. Rumman Chowdhury, who specializes in ethical, explainable and transparent AI, about the path to AGI and its potential impacts on society.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Climate Change Has Made Allergy Season Worse. How Do We Cope?

    Play Episode Listen Later Apr 8, 2025 15:53


    In many parts of the United States, spring has sprung. There's nothing quite like those first few beautiful days of spring. They're delightful—until the sneezing starts.According to the CDC, a quarter of US adults deal with seasonal allergies. And if you think they're getting worse, it's not just in your head. Previous research has shown that climate change is making pollen seasons start earlier and become more intense, a problem that's expected to get worse.Joining Host Ira Flatow to discuss the science behind seasonal allergies, and the best methods for treating them, is Dr. Neeta Ogden, director of the Allergy, Asthma and Sinus Center in Edison, New Jersey.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Microdosing Peanut Butter Could Alleviate Some Peanut Allergies

    Play Episode Listen Later Apr 7, 2025 17:23


    Over the past two decades, rates of peanut allergies in children have more than tripled. A variety of theories has been proposed to explain this, from a rise in industrialization keeping kids away from the germs that develop the immune system, to the previous pediatric guidelines that urged parents to restrict access to peanuts early in life. Whatever the cause, higher rates of peanut allergies means effective treatments are in higher demand.New research published in NEJM Evidence shows that a simple treatment could be effective for kids who can tolerate half a peanut or more before an overwhelming reaction: eating a small amount of store-bought peanut butter, gradually increasing the amount over 18 months. In the study, 100% of participating kids increased their tolerance to three tablespoons of peanut butter without an allergic reaction.Joining Host Flora Lichtman to discuss this study and other food allergy treatments on the horizon is Dr. Scott Sicherer, Director of the Jaffe Food Allergy Institute at Mount Sinai Hospital in New York.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    The Department Of Health And Human Services Cuts 10,000 Jobs

    Play Episode Listen Later Apr 4, 2025 12:14


    The cuts hit multiple agencies, affecting work on HIV, gun violence prevention, vaccines, minority health research, and more.On April 1, thousands of federal health workers woke up to find that they had been laid off. Scientists and civil servants at the Food and Drug Administration, Centers for Disease Control and Prevention, and National Institutes of Health were let go as part of Robert F. Kennedy Jr.'s pledge to cut jobs at the country's top disease-fighting agencies.Host Ira Flatow talks with Umair Irfan, senior correspondent at Vox in Washington, D.C., about the repercussions of these cuts. They also discuss other science news of the week, including a pacemaker the size of a grain of rice, how air pollution affects the climate, and miso made on board the International Space Station.Transcript for this segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Forecasting Cuts Spark Worries About Hurricane Season | Soothing Babies With Music

    Play Episode Listen Later Apr 3, 2025 17:16


    Emergency response experts say that funding and staff cuts at the National Weather Service could mean less reliable weather forecast. And, babies like music, but they generally have preferences. A music therapist reveals the best kinds of music to soothe a baby.Forecasting Cuts Leave Some Worried For Hurricane SeasonMany in Georgia are still recovering from the devastation of Hurricane Helene last fall.Now, firings and funding cuts at the National Weather Service and other agencies have some experts worried about accurate forecasts heading into the next hurricane season, which begins June 1.Hundreds of workers have been fired from the National Oceanic and Atmospheric Administration, or NOAA, including meteorologists at the Weather Service. More cuts by the Trump administration are reportedly on the way.“The forecast is not going to be as accurate because it won't have as much information in it,” said Chuck Watson of ENKI research in Savannah, who studies disaster preparedness and response.Read the whole story at sciencefriday.com.Tips For Soothing Your Baby With Music, From A Music TherapistIf you're a parent, you've probably heard that playing music is good for your baby's brain development. But that's where many people's knowledge about the subject ends. What about music is good for a baby's development? Will queuing up a lullaby playlist get the job done? And how can you tell if it's all just too much for them?Sarah Nolan, a board-certified music therapist and neonatal intensive care unit music therapist in Children's Hospital Los Angeles' Mark Taper and Johnny Mercer Artists Program recently published recommendations on the best ways to play music around your baby.Host Ira Flatow talks to Nolan about the ideal length of time to play music, what kinds of music are best, and the benefits of music therapy to babies and adults alike.Transcripts for each segment will be available after the show airs on sciencefriday.com.  Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Massive Iceberg Breaks Off Antarctica, Revealing Wonders Below

    Play Episode Listen Later Apr 2, 2025 17:55


    In January, an iceberg the size of Chicago splintered off from the Antarctic Peninsula and drifted away in the Bellingshausen Sea.As luck would have it, a team of scientists was nearby on a research vessel, and they seized the chance to see what was lurking on the seafloor beneath that iceberg—a place that had long been covered, and nearly impossible to get to.They found a stunning array of life, like octopuses, sea spiders, and crustaceans, as well as possible clues to the dynamics of ice sheets.Host Ira Flatow talks with the expedition's two chief scientists: Dr. Patricia Esquete, marine biologist at the University of Aveiro in Portugal, and Dr. Sasha Montelli, glaciologist and geophysicist at University College London.Transcripts for each segment will be available after the show airs on sciencefriday.com.  Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    TikTok Is Shaping How We Think About ADHD

    Play Episode Listen Later Apr 1, 2025 18:09


    Mental health information on social media can be both revelatory and misleading. How do clinicians and their patients make sense of it?TikTok and other social media sites are full of mental health content—often short, grabby, first-person videos detailing symptoms for conditions like ADHD and autism. But what does this mean for teens and young adults who spend hours a day scrolling?A new study published in PLOS One analyzes the 100 most viewed TikTok videos about ADHD to assess both how accurate they are and how young people respond to them. Researchers found that about half of the videos were inaccurate or missing key context, and that the more TikToks young adults watched, the less critical they were of the content.For some, watching social videos about mental health conditions led them to better understand themselves and eventually get a proper diagnosis and treatment. For others it made them consider if they have conditions they don't meet the diagnostic criteria for.Host Flora Lichtman talks with the lead author of the ADHD TikTok study, Vasileia Karasavva, a PhD Student in clinical psychology at the University of British Columbia; and Dr. Jennifer Katzenstein, director of psychology, neuropsychology, and social work at Johns Hopkins All Children's Hospital in St. Petersburg, Florida.Transcripts for each segment will be available after the show airs on sciencefriday.com.  Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Engineering Lessons One Year After The Baltimore Bridge Collapse

    Play Episode Listen Later Mar 31, 2025 18:34


    Engineers take an in-depth look at why the Francis Scott Key Bridge in Baltimore collapsed and how to prevent future tragedies.In the early morning of March 26, 2024, the container ship Dali struck the Francis Scott Key Bridge in Baltimore. Within 30 seconds, the bridge collapsed into the river below. Six construction workers lost their lives.On the one-year anniversary of the accident, we talk about what went wrong, and how to improve the safety of our nation's bridges and prevent another tragic crash.Host Ira Flatow is joined by Dr. Abi Aghayere, professor of civil engineering at Drexel University; and Dr. Thomas McKenney, associate professor of engineering practice in the naval architecture and marine engineering department at the University of Michigan.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    23andMe Bankruptcy | A Coating That Can Slow A Golf Ball's Roll

    Play Episode Listen Later Mar 28, 2025 24:28


    The company has genetic data of 15 million people, which could be shared with a future buyer. Here's how to delete it. Plus, an experimental coating could make golf balls roll more reliably on greens with different conditions.After 23andMe Bankruptcy, Customers Urged To Delete Their DataIf you're one of roughly 15 million people who used 23andMe to unlock information from their DNA, consumer advocates have a message for you: Delete your data. On Sunday, the company, which has customers send saliva samples for DNA analysis, filed for bankruptcy. While many customers submitted their saliva for the purpose of ancestral analysis, 85% of customers also consent to their data used for genetic disease research.As the company searches for a buyer, consumer advocates, including California Attorney General Rob Bonta, have urged customers to delete their data from 23andMe's website. 23andMe and other genetic testing companies are not subject to HIPAA, meaning health and medical records kept by 23andMe could be shared with a future buyer.Producer Kathleen Davis joins Host Flora Lichtman to discuss this and other top science stories of the week.Chemists Make A Coating That Can Slow A Golf Ball's RollWith spring here, the days are getting warmer and longer, meaning conditions are perfect for a trip to the golf course. And while golf is certainly a game of physics—force, angles, parabolas—this week researchers presented work showing that chemistry could play an important role on the golf course as well. Speaking at the meeting of the American Chemical Society in San Diego, researchers described a high performance coating that could be incorporated into the polyurethane shell of a golf ball.The hydrophilic (water-loving) coating would make tiny bits of water stick to the surface of the golf ball and sheet off, modifying the way the ball interacts with the grass of the green. That interaction, says Tom Kennedy, owner of Chemical Innovative Solutions Inc., would lead to the ball rolling more slowly and reliably, especially on “fast,” closely-cut greens in dry and windy conditions.Kennedy joins Host Ira Flatow to discuss the technology, and how hydrophilic coatings could find a home in other applications, including solar cells.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    AI Word Choice | When Dwarf Lemurs Hibernate, Their Chromosomes Do Something Odd

    Play Episode Listen Later Mar 27, 2025 24:27


    Certain words are overrepresented in text written by AI language models. A study investigates why such patterns develop. Also, the ends of chromosomes, called telomeres, typically shorten as an organism ages. But when some fat-tail dwarf lemurs hibernate, they lengthen.‘Delving' Into The ‘Realm' Of AI Word ChoiceSeveral years ago, some eagle-eyed readers of scientific papers noticed an unusual trend—an increase in the number of abstracts using certain words. The terms, including “delve,” “realm,” “evolving landscape,” and more, were suddenly appearing more often than they used to.Researchers analyzed the abstracts and compared them to abstracts written just a few years earlier, before the widespread availability of artificial intelligence large language model chatbots. They came to the conclusion that abstracts written by AI were more likely to use words from a list of around 20 favorites than regular human speech. The question was, why? If the models were trained on conventional writing, how did a preference for words such as “delve” creep in?Host Flora Lichtman talks with Dr. Tom Juzek and Dr. Zina Ward of Florida State University, who set out to try to understand the origins of some of AI's favorite words.When Dwarf Lemurs Hibernate, Their Chromosomes Do Something OddThe fat-tail dwarf lemur is one of the only primates that hibernate for the winter. A new study published in the journal Biology Letters takes a closer look at what's going on inside lemur cells when they are in this extended phase of suspended animation. It turns out that their telomeres, the ends of the chromosomes, actually grow longer when the dwarf lemurs hibernate. Typically telomeres shorten as we age, as cells continuously divide. So, what exactly does this finding mean for lemurs and other primates, like humans?Host Flora Lichtman talks with the co-authors of this study, Dr. Marina Blanco and Dr. Lydia Greene, research scientists at Duke University.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Developing Faster, Simpler Tools To Treat Tuberculosis

    Play Episode Listen Later Mar 26, 2025 18:27


    TB kills more than a million people each year. Dr. Mireille Kamariza has spent her career developing better detection and treatment tools.As the United States retreats from global health leadership—withdrawing from the World Health Organization, dismantling USAID—public health experts warn that there will be implications for the spread of certain diseases around the globe. One such disease is tuberculosis (TB), which is the deadliest infectious disease in the world.If you live in the United States, it's likely that TB is not on your radar: It's rare, and if someone is infected, there are effective treatments. But elsewhere in the world, more than a million people die of the bacterium each year, mostly in low-resource, high population regions.Tuberculosis isn't a straightforward bug to treat. It has a unique armor, which helps it evade treatment like antibiotics. The current treatment regimen involves taking 16 pills a day for six months, which for people in regions with limited access to medicine, can be a massive barrier.Joining Host Flora Lichtman to discuss the science behind this deadly bacterium, and new tools to test for and treat it, is Dr. Mireille Kamariza, a chemical biologist at the University of California, Los Angeles.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Author John Green On The Many Ways Tuberculosis Shaped Human Life

    Play Episode Listen Later Mar 25, 2025 19:00


    In a new book, author John Green traces how the disease has impacted culture, geography, and even fashion over the centuries.Tuberculosis (TB) has had an incredibly large impact on human history. One staggering statistic? It's been estimated that by the start of the 1800s, the disease had killed one in seven people who had ever lived. Because of this, tuberculosis affected human culture, geography, and fashion—and even killed off some of literature and media's most famous heroines.While TB incidence has gone down tremendously in the United States, it remains a massive issue in low-resource nations. About 1.25 million people die of TB each year, making it still the deadliest infectious disease in the world.Author John Green explores humankind's relationship with TB in the new book Everything is Tuberculosis: The History and Persistence of Our Deadliest Infection. Green speaks with Host Flora Lichtman about how TB's path reflects our society and culture. He joins us from Indianapolis, Indiana.Transcript for this segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    DESI Data Strengthens Evidence Of Change In Dark Energy

    Play Episode Listen Later Mar 24, 2025 18:20


    Researchers built the largest 3D map of our universe yet. What they found supports the idea that dark energy could have evolved over time.One of the mysteries of the universe is why it expands at the rate that it does. Back in 1998, two teams of researchers observed that not only was the universe expanding, but that the rate of expansion was increasing. That observation was the basis for a concept now known as dark energy. In the years since, cosmologists have been trying to get a handle on better measurements of that effect, and hoping to figure out what dark energy actually might be.This week, researchers on a project called DESI, the Dark Energy Spectroscopic Instrument, released results based on their first three years of data at an international physics conference. They found that it appears possible that dark energy—whatever it is—has changed over the lifetime of the universe. In other words, the so-called cosmological constant may not, in fact, be a constant. The data is not quite statistically significant yet, so researchers can't definitively say that this is true, which leaves many questions about the nature of dark energy still unresolved.Dr. Andrei Cuceu of the Lawrence Berkeley National Laboratory and Dr. Adam Riess of Johns Hopkins University and the Space Telescope Science Institute join Host Flora Lichtman to talk about the new research, and what remains to be discovered in dark energy.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    NASA Astronauts Return To Earth After Extended Stay On The ISS | Bottle "Pop" Physics

    Play Episode Listen Later Mar 21, 2025 19:02


    After nine months aboard the International Space Station, astronauts Butch Wilmore and Suni Williams have finally landed back on Earth. Also, a German physicist and homebrewer discovered brief, intense physical reactions that happen when you uncork a bubbly swing-top bottle.NASA Astronauts Return To Earth After Extended Stay On The ISSAfter 286 days aboard the International Space Station—278 days longer than their initial planned mission—NASA astronauts Butch Wilmore and Suni Williams landed safely back on Earth on Tuesday, off the coast of Florida. Their mission turned into a nine-month stay on the station after their Boeing Starliner capsule had issues with its thrusters and NASA deemed it unsafe to carry the astronauts back. SpaceX's Dragon capsule instead ferried them to Earth earlier this week. And they had a splashdown surprise: A pod of curious dolphins greeted them after they landed.Host Flora Lichtman is joined by Casey Crownhart, senior climate reporter at MIT Technology Review, to catch us up on that and other big science stories from this week, including why a company is trying to “refreeze” a massive glacier, why the 10 hottest years on record are the last 10, and how the London Zoo is trying to conserve a unique frog that incubates its young in its vocal sacs.The Physics That Makes Swing-Top Bottles ‘Pop'For a lot of us, uncorking a bottle is the sound of celebration. It's also a sound that we may not think too much about—until we open our next bottle.But Dr. Max Koch, a physicist at the University of Göttingen who does home brewing on the side, got to wondering what actually makes that popping sound. What's happening inside that bottle, physics-wise? To find out more, he recorded the uncorking of an unsuccessful batch of his ginger beer using microphones and a high-speed camera, and analyzed the bubbly results with a physicist's rigor. His team's findings were published in the journal Physics of Fluids.Dr. Koch sits down with Host Flora Lichtman to talk about the brief but intense changes to temperature, sound, and speed that happen when you uncork a swing-top glass bottle.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    The Evolving Science Of How Childhood Trauma Shapes Adults | Butterfly Memories

    Play Episode Listen Later Mar 20, 2025 18:48


    The framework of Adverse Childhood Experiences started with an unexpected finding over 30 years ago. How is our approach changing? We know that experiences from our childhood, both good and bad, shape who we become as adults. But, understanding what kinds of early experiences have staying power into adulthood and the wide range of impacts they can have is an emerging science.In the 1980s, Dr. Vincent Felitti ran a weight loss clinic in San Diego, California. He noticed that some patients who regained weight were more likely to have experienced sexual abuse in childhood.This eventually led him to conduct research on a larger scale to better understand the correlation between what he and his colleagues dubbed adverse childhood experiences, or ACES, and mental and physical health challenges later in life.This same 10-question survey Dr. Felitti gave participants in the 1990s is still used by researchers and clinicians to assess childhood trauma. But recently, some psychology experts have begun to question how accurately the ACES framework identifies trauma in diverse populations, since it was originally developed for a mostly white and affluent study population.Host Flora Lichtman talks with Preeti Simran Sethi, science writer and Rosalyn Carter Mental Health Journalism fellow, about her reporting for Science Friday about adverse childhood experiences.Also, to see more butterfly stories from our listeners, visit our story from last week. Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    How NIH Cuts Could Affect U.S. Biomedical Research

    Play Episode Listen Later Mar 19, 2025 18:30


    Former NIH director Dr. Harold Varmus speaks out about what recent budget cuts and policy changes could mean for science.One of the areas targeted by President Trump's administration for cuts has been the National Institutes of Health (NIH). Cost-cutting actions have included the layoffs of some 1,200 NIH employees, the termination of research grants, a pause in the “study sections” that evaluate and award grant funding, and a cap on indirect costs included in research grants. Some of those moves have been paused following court cases. Dr. Harold Varmus, a former director of the National Institutes of Health, joins Host Ira Flatow to talk about the actions, and the impact he fears they could have on the future of biomedical research in the United States.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Fungi Create Complex Supply Chains | A Rookie Robot Umpire Takes The Field

    Play Episode Listen Later Mar 18, 2025 18:58


    Fungal networks in the ground ferry crucial nutrients to plants. But how do brainless organisms form complex supply chain networks? Also, in this year's baseball spring training, the new Automated Ball-Strike System is helping settle challenges to home plate pitch calls.Scientists Observe Fungi Creating Complex Supply ChainsAs the leaves start to pop out, it's natural to look up and admire the trees. But actually, there's a lot of action happening underneath your feet. Beneath you is a complex network of fungal trade routes carrying essential nutrients to the roots of plants, mined from the soil by fungus. It's a subterranean supply chain.But how exactly do these complex networks form? How does the fungus decide where to ship which resources, or where to build roads? Basically, how does a brainless thread make decisions?Host Flora Lichtman is joined by Dr. Toby Kiers, an author on a recent study of those networks, and professor of evolutionary biology at Vrije University in Amsterdam. She's also the executive director of the Society for the Protection of Underground Networks (SPUN).A Rookie Robot Umpire Takes The FieldBaseball fans are eagerly awaiting opening day. And while spring training is a time for teams to test out new players and strategies, it's also a time for Major League Baseball to trial new rules and procedures. One of the things that the league has been testing this year is a robotic system to call balls and strikes.The Automated Ball-Strike System, which is based on the same technology used for line judging in tennis, isn't calling every pitch, but is used to back up a challenge system at the plate. The tech is already in use in Triple-A games, and could make it to the major leagues in the years ahead. Baseball writer Davy Andrews joins Host Ira Flatow to talk about the technology, and how it could subtly change the rules of the game.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    10% Of NOAA Staff Laid Off | Frozen Funds Leave Farmers In Limbo

    Play Episode Listen Later Mar 17, 2025 25:06


    Layoffs at the agency, which releases weather forecasts and monitors extreme weather, could have serious implications. Also, funds for climate and sustainability-focused farming projects have been indefinitely frozen, even though the USDA has already signed contracts.10% Of NOAA Staff Laid Off, With More Cuts PossibleThe National Oceanic and Atmospheric Administration, better known as NOAA, impacts and provides services for Americans every day. The agency releases daily weather forecasts and monitors extreme weather, and it also conducts research into global weather and climate change.Along with many other federal science agencies, NOAA is being subjected to layoffs in the name of cost-cutting: 10% of the agency's workforce has been laid off, with 1,000 more cuts potentially to come. According to Dr. Timothy Gallaudet, acting NOAA administrator during Trump's first term, this is likely to lead to declines in quality of service and access to information about weather events.Host Flora Lichtman speaks to Umair Irfan, science correspondent at Vox, who has been covering the turmoil at NOAA. They also discuss other science stories of the week, including the death of prolific blood donor James Harrison.Frozen Climate And Conservation Funds Leave Farmers In LimboAround the country, farmers are planning and planting this year's crops. It can be uncertain work, made even more tenuous by some of the Trump administration's changes to climate and conservation policies.The administration has frozen billions of dollars in grants to farmers for sustainable agriculture, conservation, and “climate smart” projects. In some cases, farmers had already signed contracts with the government and begun work on these projects.While some funding from the Inflation Reduction Act was recently released, many farmers across the country are still in limbo.Host Flora Lichtman talks with Patrick Brown, a farmer in Warren County, North Carolina; and Dr. Kitty O'Neil, an agricultural climate resiliency specialist at Cornell University's Cooperative Extension about the future of farming in a changing climate.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Pi, Anyone? A Celebration Of Math And What's New

    Play Episode Listen Later Mar 14, 2025 18:22


    It's March 14, or Pi Day, that day of the year where we celebrate the ratio that makes a circle a circle. The Greek letter that represents it is such a part of our culture that it merits our irrational attention.Joining Host Ira Flatow to help slice into our pi's is Dr. Steven Strogatz, professor of math at Cornell University and co-host of Quanta Magazine's podcast “The Joy Of Why.” They talk about how pi was “discovered,” the ways it's figuring into recent science, and how AI is changing the field of mathematics.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    How Plants Powered Prehistoric Giants Millions Of Years Ago

    Play Episode Listen Later Mar 13, 2025 18:40


    When you imagine prehistoric life, it's likely that the first thing that comes to mind are dinosaurs: long-necked Apatosauruses, flying Pterosaurs, big toothy Tyrannosaurs. But what don't get as much attention are the prehistoric plants that lived alongside them.Plants, shrubs, and trees played a key part in the food chains of dinosaurs, and many dinosaurs evolved to match the plant life available to them. The Apatosaurus' long neck, for example, developed to reach leaves high up in prehistoric trees.Joining Host Flora Lichtman to defend the importance of prehistoric plants is Riley Black, author of the new book When the Earth Was Green: Plants, Animals and Evolution's Greatest Romance. She's based in Salt Lake City, Utah.Read an excerpt from When the Earth Was Green at sciencefriday.com.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    How Narwhals Use Their Tusks To Hunt And Play | This Week's ‘Blood Moon' Lunar Eclipse

    Play Episode Listen Later Mar 12, 2025 16:54


    An international team of researchers used drones to study narwhals and learn more about their behavior. And, a total lunar eclipse will be visible across most of North and South America in the early morning hours of March 14.New Footage Shows How Narwhals Use Tusks To Hunt And PlayWe're taking a polar plunge into the science of sea unicorns, also known as narwhals!Narwhals are mysterious arctic whales with long, twirly tusks protruding from their foreheads, like a creature out of a fairy tale. And it turns out that we don't know too much about them, partly because they live so far north in the remote Arctic.An international team of researchers used drones to observe narwhals in the wild and learned new things about their behavior, including how they use their tusks to hunt and play.Host Flora Lichtman gets on the horn with Dr. Gregory O'Corry-Crowe, research professor and biologist at Florida Atlantic University, who was an author on the new narwhal study, published last month in Frontiers in Marine Science.How To See The ‘Blood Moon' Lunar Eclipse This WeekEarly on Friday, March 14 (or super late on Thursday, March 13, depending on your time zone) people across the U.S. will be able to watch a total lunar eclipse, if skies are clear. The partial eclipse will begin at 1:09 a.m. Eastern time on Friday the 14th, with totality lasting from 2:26 to 3:31 a.m. Eastern.Astronomer Dean Regas joins Host Flora Lichtman to tell us what to expect, and share some tips for comfortable lunar eclipse viewing.Transcripts for each segment will be available after the show airs on sciencefriday.com.   Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Where Have All The Butterflies Gone?

    Play Episode Listen Later Mar 11, 2025 17:33


    A sweeping new study on one of the most beloved insects, maybe the only truly beloved insect—the butterfly—details its rapid population decline in the United States. The new research, published in the journal Science widens the butterfly net and looks at how more than 500 species have fared over the past 20 years.Researchers found that many populations are taking a nosedive. What's causing the downswing, and is there anything we can do?Host Flora Lichtman talks with two of the study authors, Dr. Elise Zipkin, Red Cedar distinguished professor of quantitative ecology and director of the ecology, evolution and behavior program at Michigan State University; and Dr. Nick Haddad, professor of integrative biology also at Michigan State University in East Lansing, Michigan.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    What Does Dismantling USAID Mean For Global Health?

    Play Episode Listen Later Mar 10, 2025 18:25


    On the very first day of Donald Trump's second term, he signed an executive order targeting foreign aid programs, especially the U.S. Agency for International Development (USAID).Comprising less than 0.1% of the federal budget, USAID provides international humanitarian and development aid for poverty eradication, education, disease prevention, and medical programs. The Trump administration has cut off funding for these programs and most of the USAID staff was placed on leave or laid off.Since January, hospitals and clinics in places like Thailand, Syria, and India have shuttered; clinical trials on HIV and maternal health have been canceled; and projects on polio, malaria, and tuberculosis prevention have been stopped.Then, this week, the Supreme Court rejected a bid to keep some aid funds frozen. But what does that mean in practice for USAID's global health initiatives?Host Flora Lichtman talks about the global health implications of dismantling USAID with Dr. Atul Gawande, surgeon and former head of global health at USAID; and Dr. Salim Abdool Karim, epidemiologist and director of the Centre for the AIDS Programme of Research in South Africa.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Protesters ‘Stand Up For Science' At Rallies Nationwide | Blue Ghost Lunar Lander

    Play Episode Listen Later Mar 7, 2025 27:55


    Scientists aren't always encouraged to be politically active. But recent political interference by the Trump administration has many fired up. And, the Blue Ghost lunar lander, part of NASA's CLPS initiative, completed the first fully successful commercial moon landing.Protesters ‘Stand Up For Science' At Rallies Across The CountryScientists and defenders of science are gathering in cities across the U.S. today as part of Stand Up for Science rallies, events to protest recent political interference by the Trump administration in science funding. The main rally in Washington, D.C. features speakers including Bill Nye, Dr. Frances Collins and Dr. Atul Gawande, and will advocate for ending censorship, expanding scientific funding, and defending diversity, equity, and inclusion.Host Flora Lichtman speaks to science reporter Anil Oza, a Sharon Begley Fellow at STAT and MIT, about the runup to Stand Up For Science, and what he's heard from organizers and attendees. Then, Flora speaks with two listeners, D.C.-based planetary scientist Mike Wong and University of Louisville student Emily Reed, about why they're fired up to attend local rallies. Touchdown For The Blue Ghost Lunar LanderLast weekend, the Blue Ghost lander, built by the Texas-based company Firefly Aerospace, became the first commercial spacecraft to execute a fully successful landing on the surface of the moon. On board the lander were 10 NASA instruments flown as part of NASA's Commercial Lunar Payload Services (CLPS) initiative. The lander will be in operation on the moon over the course of one lunar day (about 2 Earth weeks), before running out of battery power as the lunar night falls.Kevin Scholtes, an engineer at Firefly Aerospace, and Dr. Nicky Fox, associate administrator for the NASA Science Mission Directorate, join Host Flora Lichtman to talk about building a commercial spacecraft, the role of private companies in spaceflight, and some of the science the mission aims to achieve.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    The Effort To Save Thousands Of Donor Kidneys | Ocean Liner Will Become An Artificial Reef

    Play Episode Listen Later Mar 6, 2025 18:36


    Last year, 9,000 deceased donor kidneys were discarded due to storage and time limitations. A kidney “life support” machine could change that. Also, the SS United States will join Florida's 4,300 artificial reefs—human-made places for fish and other marine life to live. How do these reefs work?The Effort To Save Thousands Of Donor Kidneys From Being WastedSylvia Miles was diagnosed with lupus in 2006, a chronic autoimmune disease that causes the body's immune system to attack healthy tissue—including her kidneys.Miles, who lives in Indianapolis, was later diagnosed with advanced kidney disease, and was in need of a kidney transplant.Kidney diseases are one of the leading causes of death in the United States with 37 million people living with chronic kidney disease. Together with advanced kidney disease—the later stage of CKD—it cost Medicare billions of dollars in recent years.People like Miles, who need a kidney transplant, wait an average of five years—often on dialysis.But despite the long waitlists and organ shortages, around 9,000 kidneys from deceased donors last year were discarded due to perceived issues with their viability. A new Indiana-based organization, 34 Lives, is working to limit that waste and rehabilitate the organs.Read the rest of this article on sciencefriday.com.Ocean Liner SS United States Will Become An Artificial ReefThis week, after a notable career, the SS United States, a 1950s ocean liner, took her sunset cruise. Like many retirees, the ship is heading south—from Philadelphia to Florida—where she'll be reinventing herself. In this next chapter, the SS United States will have new passengers: fish and other marine creatures. The ship will be sunk to the bottom of the sea and turned into an artificial reef, joining more than 4,300 artificial reefs off the coast of Florida.Other sunken ships have become artificial reefs in the past, which have helped boost marine life as well as scuba diving and fishing tourism. Host Flora Lichtman speaks with Scott Jackson, a regional specialized agent with the Florida Sea Grant and University of Florida IFAS extension, about the science behind artificial reefs, and what has been learned from decades of research.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Where Does Plastic And Other Trash Go After We Throw It Away?

    Play Episode Listen Later Mar 5, 2025 18:29


    A journalist traveled to five continents to learn about the afterlife of our trash, and why most “recyclable” plastic actually isn't.Have you ever gotten to the end of, say, a jar of peanut butter and wondered if it should go in trash or recycling? If it's worth rinsing out? And where will it actually end up?Journalist Alexander Clapp had those same questions, and went to great lengths to answer them—visiting five continents to chronicle how our trash travels. Along the way, he discovered a multibillion dollar trash trade run by shady waste brokers, and a global industry powered by slimy spoons, crinkled plastic bags, and all the other stuff we throw away. It's a putrid business that we're a part of, and many of us know little about.Host Flora Lichtman speaks with Clapp about the garbage business and his new book Waste Wars: The Wild Afterlife Of Your Trash.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    An Animal's Size And Its Cancer Risk | Bastetodon, A 30 Million-Year-Old Apex Predator

    Play Episode Listen Later Mar 4, 2025 17:41


    A study finds that Peto's Paradox, which states that larger animals are no more likely to get cancer than smaller ones, may not hold up. Also, a nearly complete predator skull was found in the Egyptian desert. Its lineage indicates that it was a top carnivore of the age.What Does An Animal's Size Have To Do With Its Cancer Risk?If you throw a huge party, there's more of a chance of problems than if you host a quiet get-together for a couple of friends. The logic is simple: Having more people around means more opportunities for chaos. Similarly, it would seem to make sense that in animals, a bigger species with more cells might have a greater chance of something going wrong with one of those cells, including mutations leading to cancer.Back in 1977, a British epidemiologist named Richard Peto observed that that didn't seem to be true. Bigger animals didn't seem to have a greater risk of cancer than smaller ones. That became known as Peto's Paradox, and has been a topic of debate among cancer biologists ever since.Research published this week in the Proceedings of the National Academy of Sciences takes a new look at Peto's Paradox using an unusual set of data—death reports from zoos around the world. Dr. Sarah Amend of Johns Hopkins Medical School joins Host Flora Lichtman to explain why, in their findings, Peto's Paradox doesn't seem to hold up—and what studying animal cancer rates could teach scientists about improving human health.Meet Bastetodon, A 30 Million-Year-Old Apex PredatorOnce upon a time, some 30 million years ago, what is now Egypt's Western Desert was a lush forest. Humans had not evolved yet, the nearest relatives being monkey-like creatures. And through those forests stalked Bastetodon syrtos, a newly described apex predator from an extinct lineage known as the Hyaenodonts—one of the top carnivores of the age.Researchers recently discovered a nearly complete skull of the creature. They reported on the find in the Journal of Vertebrate Paleontology. Host Flora Lichtman talks with Shorouq Al-Ashqar of the Mansoura University Vertebrate Paleontology Center about the discovery, and the picture it helps paint of ancient life.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    How Trump's DEI Ban Will Affect Medical Research

    Play Episode Listen Later Mar 3, 2025 18:36


    Changes limiting programs, grants, and even the nature of studies are already underway at the NIH, NSF, FDA, CDC, and more.On President Trump's first day in office, he signed an executive order to end what he calls “illegal and immoral discrimination programs,” referencing diversity, equity, and inclusion (DEI) in the federal government. The repercussions of this are already being felt across science agencies.Things are changing fast: Last week, a federal judge in Maryland temporarily blocked parts of the DEI purge from being carried out. At the same time, federal research agencies have already made changes. For example, the National Institutes of Health suddenly pulled a program that provides grants to PhD students from marginalized backgrounds, and has already canceled studies mid-project, like one on LGBTQ cancer patients. The National Science Foundation has begun reviewing active research science projects that may not comply with Trump's executive orders. The Centers for Disease Control and Prevention took down resources for HIV prevention, LGBTQ+ health, contraception, and more—then partially restored them, as ordered by a judge. And the Food and Drug Administration pulled its guidance on the importance of having some diversity in clinical trials, like those to test drugs and medical devices.So, what does banning diversity, equity, and inclusion efforts mean for medical research? And what does it mean for our health?Host Flora Lichtman talks with Dr. Rachel Hardeman, director of the Center for Antiracism Research for Health Equity at the University of Minnesota in Minneapolis; and Dr. Melissa Simon, an ob-gyn at Northwestern Medicine, and director of the Center for Health Equity Transformation in Chicago.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

    Conflicting Directives Sow Confusion For NIH Workers | The Mycobiome

    Play Episode Listen Later Feb 28, 2025 25:02


    The acting head of the NIH reportedly pushed back against legal guidance to resume grant funding, leaving federal workers in the lurch. Also, though fungi make up a tiny part of the human microbiome, they play an important role in both the prevention and development of many diseases.Cuts And Conflicting Directives Sow Confusion For NIH WorkersJust over a month after President Trump's inauguration, federal science in the US is in a state of disarray. Executive orders to halt grant funding at the National Institutes of Health (NIH) have faced court challenges. Last week, a federal judge extended a restraining order on a proposal to cap NIH grant funding for indirect costs, costs that experts say are critical to their work. But according to new reporting, staff within the NIH have been left without clear guidance about moving forward with those grants, with the NIH's acting director reportedly pushing back against legal guidance from the agency's lawyers to restart distribution of the funding.Host Flora Lichtman is joined by Katherine J. Wu, staff writer for The Atlantic, who reported on the turmoil at the NIH. They also talk about other science news of the week, including an update on the measles outbreak in Texas, how to see every planet in the solar system this week, and how scientists think runner Faith Kipeygon could be the first woman to break a four-minute mile.You've Heard Of The Microbiome—Welcome To The MycobiomeYou've heard of the microbiome, the community of bacteria, viruses, archaea parasites, and fungi that live in our bodies. But that last member of the group, fungi, get a lot less attention than the others. And perhaps that's unsurprising. After all, bacteria outnumber fungi 999 to 1 in our guts.But now, scientists are beginning to piece together just how important fungi truly are. Disruption in the fungal balance can play a role in the development of Crohn's disease, irritable bowel disease, celiac disease, colorectal cancer, some skin diseases, and more.Host Flora Lichtman talks with Dr. Mahmoud Ghannoum, microbiologist and professor at Case Western Reserve University's School of Medicine, who has dedicated his career to studying the fungi in our bodies, and coined the term mycobiome over a decade ago.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

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