Avsnitt
-
Big cats used to roam the entire United States. You might know them as mountain lions, pumas, cougars, or catamounts. Though they go by many names, they're actually all the same species.
Their current population is mostly confined to the West, and part of Florida, though in recent years they’ve been spotted in other areas east of the Mississippi River. Most cougars were gone from the Northeast by the 1800s, with the last verified accounts in the 1930s.
Mountain lion ecologist Mark Elbroch hopes to reintroduce these big cats back into their previous habitats in New England. But, should we? What are the benefits and drawbacks of reintroducing the apex predator into an ecosystem it's been away from for so long?
Guest:
Dr. Mark Elbroch is the director of the puma program at Panthera, a big cat conservation organization.
Other episodes you may enjoy:
Surveying wildlife along Lewis and Clark’s route, 220 years later Are Raccoons On The Road To Domestication?Transcripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
When Blue Origin’s New Glenn spacecraft exploded in an enormous fireball during a ground test a couple weeks ago, it sent shockwaves not only through the air, but through NASA’s timeline for the upcoming Artemis missions.
It also came at an especially bad time for Jeff Bezos’ rocket company—just days after it was awarded a slew of NASA contracts to deliver equipment to the moon. Blue Origin had also been expected to play a major role in the upcoming Artemis III and IV missions, but that’s now more up in the air depending on how soon the company can rebuild its only launchpad.
And with NASA’s Artemis III crew announcement this week, Guest Host Jane Lindholm sits down with space reporters Ken Chang and Brendan Byrne to break it all down and what’s next for the space program.
Guests:
Ken Chang is a science reporter at the New York Times, where he covers NASA and the solar system.
Brendan Byrne is a space reporter for Central Florida Public Media and host of the podcast “Are We There Yet.”
Other episodes you may enjoy:
Planning your photo ops for a trip around the moon The new frontier of cancer research is in spaceTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
Saknas det avsnitt?
-
‘Tis the season for porch beers and happy hours, and we’re taking on listener questions about how alcohol affects us. Like, is a glass of wine at dinner really good for you? And why do sugary drinks give us hangovers?
Joining Guest Host Jane Lindholm to answer these questions and more are brewer and chemist Tom Shellhammer and neuroscientist Jacqui Barker.
Guests:
Dr. Jacqui Barker is an associate professor in the Department of Pharmacology & Physiology at Drexel University College of Medicine.
Dr. Tom Shellhammer is a brewer and the Nor’Wester Professor of Fermentation Science at Oregon State University.
Other episodes you may enjoy:
What Causes Red Wine Headaches? It May Be Quercetin The Physics That Makes Swing-Top Bottles ‘Pop’Transcripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
The 2026 World Cup will be the largest one yet, and FIFA is trying to make it the most high-tech, too. The federation has partnered with tech giant Lenovo to launch Football AI Pro, which is designed to analyze over 2,000 different metrics and deliver real-time insights to coaches, players, and analysts. Guest Host Jane Lindholm chats with ESPN writer Ryan O’Hanlon about how AI analytics actually play out in soccer.
Plus, how a team of researchers grew 16 stadiums’ worth of FIFA-class turf. Turfgrass scientist Jackie Lyn Guevara breaks down the importance of perfectly uniform turf, how the turf was designed, and what she’ll be looking out for during the matches.
Guests:
Ryan O’Hanlon is a staff writer at ESPN and the author of “Net Gains: Inside the Beautiful Game's Analytics Revolution.”
Dr. Jackie Lyn "Jack" Guevara is an assistant professor in the Department of Plant, Soil and Microbial Sciences at Michigan State University.
Other episodes you may enjoy:
We’re All Being Played By Metrics The Surprising Science Of Why Sneakers SqueakTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
Elite athletes spend a lot of time training their bodies for strength, endurance, coordination, and precision. But what about their brains? Can psychology help athletes achieve peak performance?
Joining Flora Lichtman to talk about this are professional climber Alex Honnold and Jessica Bartley, psychologist for U.S. Olympians and Paralympians.
Guests:
Alex Honnold is a professional climber, founder of the Honnold Foundation, and host of the Planet Visionaries Podcast: in partnership with the Rolex Perpetual Planet Initiative.
Dr. Jessica Bartley is senior director of psychological services for the U.S. Olympic and Paralympic Committee.
Other episodes you may enjoy:
Can Better Equipment Eliminate Concussions In Sports? Olympic Ski Mountaineering, And Mountain Goat Climbing FeatsTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
If you’ve ever been a child, had a child, or seen a child face down in a supermarket aisle screaming, you know that parenting can be tough. But humans aren’t the only ones raising their young, so how do animals deal with toddlers that won’t follow directions or little ones that are constantly begging for snacks?
Parent and science journalist Elizabeth Preston, who wrote the book “The Creatures' Guide to Caring,” joins Host Flora Lichtman to tackle some SciFri listeners’ parenting problems, from dawdling to the bedtime pop-out.
Read an excerpt from “The Creatures' Guide to Caring: How Animal Parents Teach Us That Humans Were Born to Care.”
Guest: Elizabeth Preston is a science journalist and the author of “The Creatures' Guide to Caring.”
Other episodes you may enjoy:
How Do Animals Understand Death? Why It Took Decades For This Octopus To Be RecognizedTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
A few weeks ago, we talked to two sonic branding experts who compose music for household appliances. And we played for them a song “sung” by a washing machine that they didn’t really appreciate. But many of our listeners immediately identified the tune, a famous melody by 19th-century composer Franz Schubert.
And, as our guest tells us, it’s not just any tune—it’s one of Schubert’s most beloved compositions, “The Trout,” which he returned to several times during his short but prolific career.
L. Michael Griffel, a Schubert expert and former head of the music history department at The Julliard School, joins us for our mea culpa to “Die Forelle.”
A transcript for this episode will be added to the original segment page: Who’s composing music for my washing machine?
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
The current Ebola outbreak in the Democratic Republic of the Congo and neighboring Uganda is caused by the Bundibugyo virus. There’s no specific treatment or vaccine for this strain, unlike the more common Zaire strain that caused the 2014 outbreak.
Molecular biologist Christian Happi has dedicated his career to improving genomic sequencing capabilities and virus monitoring across the continent of Africa. He joins Flora to discuss the challenges of the current outbreak and his vision for better disease surveillance.
Guest:
Dr. Christian Happi is a distinguished professor at Redeemer’s University and runs the Institute of Genomics and Global Health in Nigeria.
Other episodes you may enjoy:
Inside the Nebraska quarantine facility responding to hantavirus Can ‘Suggestion-Box Science’ Make Public Health More Useful?Transcripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
If you look up where medicine originated, or the earliest medical interventions, you’ll probably find yourself reading about ancient Greece or Egypt or Mesopotamia. But what about before that? How did early humans treat illnesses or cope with injuries? What did a Neanderthal do if she broke a rib or had a toothache?
Flora digs into these questions with archaeologist Penny Spikins and microbiologist Laura Weyrich. They chat about ancient treatments like antibiotics and root canals, why Neanderthals were always getting hurt, and how they took care of themselves—and each other.
Guests:
Dr. Penny Spikins is a professor of the archaeology of human origins at the University of York in England.
Dr. Laura Weyrich is an associate professor of anthropology and bioethics at Pennsylvania State University.
Other episodes you may enjoy:
What Did It Feel Like To Be An Early Human? Your Pain Tolerance May Have Been Passed Down From NeanderthalsTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
A group of researchers and private investors are planning a series of privately funded missions to Venus, hoping to find signs of life. That may seem like a startling possibility. Although Venus is a close neighbor to Earth, it has a smothering atmosphere of carbon dioxide that has allowed the planet’s surface to heat to temperatures that would melt lead. There’s crushing pressure. And to top it off, there are clouds of sulfuric acid.
Astrophysicist and planetary scientist Sara Seager joins Host Ira Flatow to explain why she thinks life on Venus might be possible, high up in the clouds. Seager has conducted lab experiments that indicate various biomolecules could survive there, despite the toxic conditions. She’s leading a series of proposed private missions to the planet, to study the atmosphere, conduct habitability studies, and even bring back a sample of Venusian cloud material.
Guest:
Dr. Sara Seager is an astrophysicist and a professor of physics, planetary science, and aeronautics and astronautics at the Massachusetts Institute of Technology.
Other episodes you may enjoy:
Bizarre exoplanet clouds + Counting insects with weather radar The lucky breaks that make our Earth homeTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
Many of the forces driving species to extinction—habitat destruction, pollution, climate change—also fuel the spread of disease. And plants and animals around the globe are facing their own little pandemics, from cancer to fungal diseases.
But what if we could treat them with cutting-edge medicines? Is there something drug developers could do to help? Chemist Tim Cernak thinks so. He has been developing drugs for people for 20 years, but his patient roster has started to include sea turtles, frogs, and giant reptiles. He talks with Flora about why he’s making drugs for wildlife and why more chemists should join in.
Guest:
Dr. Tim Cernak is an associate professor of medicinal chemistry at the University of Michigan.
Other episodes you may enjoy:
Raising A New Generation Of Bat Conservationists In West Africa How Conservation Efforts Brought Rare Birds Back From The BrinkTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
The benefits of getting a shingles vaccine seem relatively straightforward: It will prevent you from getting shingles, a painful rash caused by the same virus that causes chickenpox. But researchers have found a surprising link between getting the shingles vaccine and a lower risk of developing dementia. And that’s not the only vaccine that seems to have additional benefits. So what’s going on here?
To help explain this research are epidemiologist Pascal Geldsetzer, who studies the association between the shingles vaccine and lower rates of dementia; and physician and epidemiologist Helen Chu, who studies the Flu, RSV and COVID-19 viruses.
Guests:
Dr. Pascal Geldsetzer is an assistant professor of medicine, epidemiology and population health at Stanford University.
Dr. Helen Chu is a professor of epidemiology, allergy and infectious diseases at the University of Washington.
Other episodes you may enjoy:
Study Finds COVID mRNA Vaccines Boost Cancer Treatment As Cervical Cancer Deaths Plummet, Experts Credit HPV VaccineTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
Two disease outbreaks are dominating the news: Ebola in the Democratic Republic of the Congo, and hantavirus, which started spreading on a cruise ship.
The U.S. has a one-of-a-kind medical facility that exists just for emergencies like this. It’s called the National Quarantine Unit, and it’s in Omaha, Nebraska. Right now, 18 Americans from the cruise ship where hantavirus broke out are in quarantine there.
Host Flora Lichtman chats with Angie Vasa, a nurse and administrator who has worked at this emergency center for the last 17 years. They discuss how the facility works, what’s happening with the travelers exposed to hantavirus, and how they’re preparing for the possibility of Ebola-exposed individuals.
Guest:
Angie Vasa is the director of emergency preparedness and special pathogens programs at Nebraska Medicine in Omaha, Nebraska.
Other episodes you may enjoy:
Mapping Out How Viruses Jump Between Species How Viruses Have Shaped Our WorldTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
When Lewis and Clark crossed the United States in the early 1800s, they recorded their wildlife observations along the way. Now, more than 200 years later, an expedition is following the same route and partnering with scientists across the U.S. to catalog animals and track the changes. Expedition leader Roland Kays joins Host Flora Lichtman to share some highlights.
Plus, using cell phone data and GPS collars, ecologists were able to see how animals moved (or not) when people were around. Ecologist Ruth Oliver tells us about her findings.
Guests:
Dr. Roland Kays is research professor at NC State University and director of the Biodiversity & Earth Observation Lab at the North Carolina Museum of Natural Sciences.
Dr. Ruth Oliver is an ecologist and assistant professor at UC Santa Barbara.
Other episodes you may enjoy:
Are Raccoons On The Road To Domestication? Teamwork Between Species Is The Key To Life ItselfTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
On Monday, Pope Leo XIV presented his encyclical, an open letter from the church, on AI. The 42,000-word document covers a lot of terrain—from screen time to resource extraction to job loss—but the core message is summed up in the title: “Magnifica Humanitas: On Safeguarding The Human Person In The Time Of Artificial Intelligence.”
How did the pope arrive at these views? Among those advising him on issues like AI are scientists and other experts. Host Flora Lichtman talks with a member of the Vatican’s Pontifical Academy of Social Sciences, anthropologist Marcelo Suárez-Orozco, about the encyclical and what it’s like to advise the pope.
Guest:
Dr. Marcelo Suárez-Orozco is an anthropologist and chancellor at the University of Massachusetts Boston.
Other episodes you may enjoy:
How Is AI Being Used In The Iran War? An AI Leader’s Human-Centered Approach To Artificial IntelligenceTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
Astronomers using the James Webb Space Telescope have observed clouds on a hot gas giant exoplanet called WASP-94A b, some 700 light-years away. But these clouds aren’t your usual wisps of water vapor—they’re vaporized sand. Astronomer David Sing joins Host Flora Lichtman to describe the planetary weather, and how the researchers were able to observe it.
Then, ecologist Elske Tielens joins Flora to describe how ecologists using weather radar data counted the insects aloft in U.S. skies: around 100 trillion of them on an average summer day.
Guests:
Dr. David Sing is a Bloomberg Distinguished Professor of Earth and Planetary Sciences at Johns Hopkins University.
Dr. Elske Tielens is an ecologist with the Swiss Federal Institute for Forest, Snow and Landscape Research.
Other episodes you may enjoy:
How Insects Changed The World—And Human Cultures Not Just Dying Stars: A Black Hole That Came From GasTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
It’s common knowledge that many diseases and conditions have some kind of genetic link. But that wasn't always the case. In 1990, long before the Human Genome Project tied so many health issues to differences in genetics, researchers identified a gene called BRCA1. It was the first gene linked to a hereditary form of any common cancer. People with certain variants of BRCA1 stood a higher risk of developing breast and ovarian cancer than those without those mutations.
Geneticist Mary-Claire King and her lab were the first to identify that gene. She joined Host Flora Lichtman in September 2025 to talk about her background, her research, and her approach to science.
Guest:
Dr. Mary-Claire King is an American Cancer Society Professor in the departments of Genome Sciences and Medicine at the University of Washington in Seattle.
Other episodes you may enjoy:
A Nagasaki Survivor And Physician Recounts His Life’s Work I Was Considered A NobodyTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
Old creepy houses are a horror cliche, but why? Why do they freak us out? According to new research, it might have something to do with infrasound: a sound that’s below the range of human hearing, potentially emitted by low-rumbling pipes or old boilers more common in older houses.
Psychologist and pseudoscience researcher Rodney Schmaltz explains his new study, and what role infrasound could play in leading people to feel unsettled in “haunted” places. Then, infrasound researcher Milton Garcés breaks down the infrasound that’s produced by volcanoes and asteroid impacts, and how it serves as a “keep away” signal in nature.
Guests:
Dr. Rodney Schmaltz is a professor of psychology at MacEwan University in Edmonton, Alberta.
Dr. Milton Garcés is a research scientist at the Hawai‘i Institute of Geophysics and Planetology and director of the Infrasound Laboratory at the University of Hawai’i in Honolulu.
Other episodes you may enjoy:
What The Sounds Of Melting Glaciers Can Tell Us The World According To Sound: A Sonic History Of AstronomyTranscripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
We recently got a call from a SciFri listener in Florida who has autoimmune arthritis. He told us that over the years he’d taken 10 drugs, and each out eventually stopped working. He then tried to enroll in a clinical trial for a new drug for his condition, but he was rejected specifically because he was on his 10th drug.
Today we’re digging into clinical trials and how they work. Are there incentives for drug developers to leave out “problem children”? Or is it more complicated than that? Flora talks with lawyer and bioethicist Holly Fernandez Lynch about what clinical trials are designed to do, how participants are chosen, and where FDA regulation comes into play.
Guest:
Dr. Holly Fernandez Lynch is an associate professor of medical ethics and health policy at the University of Pennsylvania.
Other episodes you may enjoy:
Why so many studies can’t be replicated
Can ‘Suggestion-Box Science’ Make Public Health More Useful?Transcripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
-
The herbicide paraquat is so toxic it’s banned in over 70 countries. But its use in the U.S. is growing, despite known links to Parkinson’s disease. In southeastern Mississippi, an industrial plant is leaking tens of thousands of pounds of the chemical into the air.
Environmental reporter Delaney Nolan and epidemiologist Beate Ritz join Host Flora Lichtman to discuss the implications of this leak, and what we know about how paraquat affects the body.
Guests:
Delaney Nolan is an environmental reporter based in New Orleans. She reported this story for The Lens and the Mississippi River Basin Ag & Water Desk.
Dr. Beate Ritz is a professor of epidemiology at UCLA in Los Angeles.
Other episodes you may enjoy:
Teasing Apart The Causes And Early Signs Of Parkinson’s Workout Worms May Reveal New Parkinson’s TreatmentsWant SciFri gear? Check out our new shop!
Transcripts for each episode are available within 1-3 days at sciencefriday.com.
Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
- Visa fler
