Science Friday

Science Friday

Society EN ↓ 500 episodes

Science Friday, as heard on PRI, is a weekly discussion of the latest news in science, technology, health, and the environment hosted by Ira Flatow. Ira interviews scientists, authors, and policymakers, and listeners can call in and ask questions as well.

Author

Science Friday

Category

Society

Podcast website

sciencefriday.com

Latest episode

Jul 10, 2026

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Episodes

992: DESI Data Strengthens Evidence Of Change In Dark Energy 24.03.2025

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 conce...

991: NASA Astronauts Return To Earth After Extended Stay On The ISS | Bottle "Pop" Physics 21.03.2025

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 ISS After 286 days aboard the International Space Station— 278 da...

990: The Evolving Science Of How Childhood Trauma Shapes Adults | Butterfly Memories 20.03.2025

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. Vi...

989: How NIH Cuts Could Affect U.S. Biomedical Research 19.03.2025

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 evaluat...

988: Fungi Create Complex Supply Chains | A Rookie Robot Umpire Takes The Field 18.03.2025

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 Chains As the leaves start to pop out, it’s natural to look up and admire the t...

987: 10% Of NOAA Staff Laid Off | Frozen Funds Leave Farmers In Limbo 17.03.2025

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 Possible The National Oceanic and Atmospheric Administration, better known as NOAA, impa...

986: Pi, Anyone? A Celebration Of Math And What’s New 14.03.2025

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...

985: How Plants Powered Prehistoric Giants Millions Of Years Ago 13.03.2025

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 availabl...

984: How Narwhals Use Their Tusks To Hunt And Play | This Week's ‘Blood Moon’ Lunar Eclipse 12.03.2025

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 Play We’re taking a polar plunge into the science of sea unicorns , also known as narwhals! Narwhals are mysterious arcti...

983: Where Have All The Butterflies Gone? 11.03.2025

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 d...

982: What Does Dismantling USAID Mean For Global Health? 10.03.2025

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...

981: Protesters ‘Stand Up For Science’ At Rallies Nationwide | Blue Ghost Lunar Lander 07.03.2025

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 Country Scientists and defenders of science are gathering in cities acros...

980: The Effort To Save Thousands Of Donor Kidneys | Ocean Liner Will Become An Artificial Reef 06.03.2025

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 Wasted Sylvia Miles was diagnosed with lupus in...

979: Where Does Plastic And Other Trash Go After We Throw It Away? 05.03.2025

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...

978: An Animal’s Size And Its Cancer Risk | Bastetodon, A 30 Million-Year-Old Apex Predator 04.03.2025

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...

977: How Trump’s DEI Ban Will Affect Medical Research 03.03.2025

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 sci...

976: Conflicting Directives Sow Confusion For NIH Workers | The Mycobiome 28.02.2025

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 Workers Just over a month after President Trump’s inauguratio...

975: The Best Tail For Balance | Bindi Irwin Wants Kids To Become ‘Wildlife Warriors’ 27.02.2025

The bone and joint structures in mammal tails help them keep their balance. Could those benefits be adapted for robots? And, in her first children’s book, conservationist Bindi Irwin takes little readers on a journey through Australia Zoo. In Search Of The Best Tail For Balance If you have met a cat, you’ve probably at some point been amazed by how acrobatic they are. They’re able to reorient them...

974: A Vaccine For Pancreatic Cancer Continues To Show Promise 26.02.2025

Pancreatic cancer is notoriously difficult to treat, and about 90% of diagnosed patients die from the disease. A team at Memorial Sloan Kettering has been working to improve those outcomes by developing a new mRNA vaccine for pancreatic cancer . A few years ago, the team embarked on a small trial to test the vaccine’s safety. Sixteen patients with pancreatic cancer received it, and even though it...

973: Why Are Flu And Other Viral Infection Rates So High This Year? 25.02.2025

It’s been an unusually tough winter virus season. Rates of flu-like infections are higher than they’ve been in nearly 30 years. And for the first winter since the start of the COVID-19 pandemic, flu deaths have surpassed COVID deaths. Add to that a higher-than-average year for norovirus, a nasty type of stomach bug. Then there’s the emerging threat of avian flu. While there is no evidence of human...

972: Making Sense Of Federal Cuts To Science—And What Comes Next 24.02.2025

Last week, some 3,500 people from across scientific fields gathered in Boston for the annual meeting of the American Association for the Advancement of Science (AAAS) . The organization’s CEO, Dr. Sudip Parikh, gave a rousing speech to attendees. “Destruction for the ill-conceived notion of cutting costs didn’t put an American on the moon, and it didn’t wipe smallpox from the face of the Earth,” P...

971: Tomb Of Egyptian King Unearthed | Why The Internet Was Captivated By A Hideous Fish 21.02.2025

Finding the original tomb of the royal is one of the most significant developments in Egyptian archeology in recent history. Also, a video of a gloriously creepy anglerfish inspired tears and poetry online. But why was this deep-sea dweller near the surface at all? Royal Tomb Of Egyptian King Thutmose II Unearthed A British-Egyptian team has made one of the most significant Egyptian archeological...

970: What Happens To Your Body When You’re Grieving 20.02.2025

We have lots of expressions to describe the pain of loss—heartache, a broken heart, a punch in the gut. These aren’t just figures of speech: While grief is an emotional experience, it’s also a physical one. Studies show that grief can change your physiology , most dramatically in the cardiovascular and immune systems. One staggering finding? A heart attack is 21 times more likely to happen in the...

969: Can Men and Women (Baboons) Really Just Be Friends? | The Best Bear Deterrent May Be Drones 19.02.2025

Can Men and Women (Baboons) Really Just Be Friends? In the romantic comedy “When Harry Met Sally,” the central premise, as Billy Crystal and Meg Ryan’s characters stay friends throughout the years, is, can men and women really just be friends? In the movie, the answer is no, not really. Spoiler alert: They do get together in the end. But what if we take that concept and bring it to the animal king...

968: Adventures In Science At The Icy ‘Ends Of The Earth’ 18.02.2025

The North and South Poles, also known as Earth’s iceboxes, help cool the planet, store fresh water, influence weather patterns, and more. They’re also the fastest warming places on Earth. A new book called Ends of The Earth: Journeys to the Polar Regions in Search of Life, the Cosmos, and Our Future illustrates the wonders of Antarctica and the Arctic—and the lengths scientists go to to study them...

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