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

918: A Theatrical Tribute To Unexpected Science 05.12.2024

The Ig Nobel awards are a salute to achievements that, in the words of the organizers, “make people laugh, then think.”  Each year, the editors of the science humor magazine Annals of Improbable Research choose 10 lucky(?) winners who have unusual achievements in science, medicine, and other fields. This year’s awards were presented in a theatrical extravaganza in an MIT lecture hall in September....

917: 'They Might Be Giants' Sings About Science 04.12.2024

As part of Science Friday’s 33rd anniversary show, we’re revisiting our listeners’ favorite stories, including this one from 2009. In the album “ Here Comes Science,” the band They Might Be Giants tackled the scientific process, plasma physics, the role of blood in the body, and the importance of DNA, all in song. Band members John Linnell and John Flansburgh discuss the album and play some scienc...

916: What Was It Like To Witness The End Of The Dinosaurs? 03.12.2024

As part of Science Friday’s 33rd anniversary show, we’re revisiting our listeners’ favorite stories, including this one from 2022. 66 million years ago, a massive asteroid hit what we know today as the Yucatán Peninsula of Mexico. Many people have a general idea of what happened next: The age of the dinosaurs was brought to a close , making room for mammals like us to thrive. But fewer people know...

915: A Nobel Prize For Chemistry Work ‘Totally Separate From Biology’ 02.12.2024

In 2022, the Nobel Prize in Chemistry went to Dr. Carolyn Bertozzi of Stanford University, Dr. Morten Meldal of the University of Copenhagen, and Dr. K. Barry Sharpless of the Scripps Research Institute “for the development of click chemistry and bioorthogonal chemistry .” In “click chemistry,” molecular building blocks snap together quickly and efficiently to let chemists build more complicated m...

914: Alan Alda Reflects On Life With Parkinson’s 29.11.2024

In 2018, actor, author and science communicator Alan Alda spoke publicly about his diagnosis for Parkinson’s Disease. Alda, who is best known for his role in “M*A*S*H,” “The Aviator,” and “The West Wing,” shifted his interests to science communication in his later years. He’s written several books on the topic, and has an ongoing podcast, “Clear + Vivid.” As part of Science Friday’s 33rd anniversa...

913: A Horn Of Potato Plenty | Adding Marbling To Fake Meat For An Extra-Realistic Bite 28.11.2024

Just in time for Thanksgiving, a potato researcher explains potato varieties, potato nutrition, and some tubular tuber facts. And, irregular, fatty marbling gives meat a unique texture. Recreating that in plant-based products isn’t easy. A Horn Of Potato Plenty The potato is a versatile vegetable—baked, roasted, fried, mashed—it can bring something to just about any menu. But, how exactly do these...

912: A Nutritionist Clarifies Some Common Health Claims 27.11.2024

We recently asked our listeners which dubious health claims they’ve been seeing in their social media feeds or being circulated by friends and family. Unsurprisingly, we received a ton of questions about nutrition , including: Is seed oil bad for you? Does apple cider vinegar really lower blood sugar? What is the difference between processed and ultraprocessed foods?  To answer those questions and...

911: Restoring Drinking Water After Hurricane Helene | Oyster Shell Reefs And Sea Level Rise 26.11.2024

Fifty-three days after Hurricane Helene, residents of Asheville can safely drink their tap water without boiling it. Why did it take so long? And, tribes’ historic lands on the Gulf Coast are being lost to the sea. To slow it down, one tribe has turned to oyster shells. The Struggle To Restore Drinking Water After Hurricane Helene When Hurricane Helene barrelled through the southeastern US in Sept...

910: 50 Years Of Science With Lucy, Our Famous Early Ancestor 25.11.2024

On November 24, 1974—50 years ago this November—a pair of paleoanthropologists made the discovery of a lifetime: a set of 47 bones, hidden in the dusty, rocky hills of a fossil site in Hadar, Ethiopia. The skeleton belonged to a 3.2 million year old hominin, which came to be nicknamed Lucy. She marked the very first specimen of Australopithecus afarensis —a species of early hominins that were very...

909: SpaceX’s Starship Completes In-Orbit Engine Test | Resuscitating Shipwrecked Rye Seeds 22.11.2024

This was the sixth test launch of the Starship vehicle, which could eventually carry humans and cargo to the moon. It was extremely loud. Also, divers have recovered seeds of a long-lost rye variety from a 146-year-old shipwreck in Lake Huron. Scientists hope to bring it back to life. SpaceX’s Starship Completes In-Orbit Engine Test On Tuesday, the rocket company SpaceX conducted another test flig...

908: Chef Jack Bishop Breaks Down ‘The Science of Good Cooking’ 21.11.2024

What’s the secret to making a fluffy omelet or the perfect pie dough? In this interview from 2012, Jack Bishop, now senior content advisor at America’s Test Kitchen, debunks cooking myths and highlights some of the surprising finds from the show’s cookbook, The Science of Good Cooking . Bishop tells us that water is one of the key parts of the perfect pie crust. You need it to roll out the dough,...

907: Bacteriophages Lurk In Your Bathroom, But Don’t Worry 20.11.2024

It sounds like something from an advertisement for bathroom cleaner: Researchers found over 600 different viruses, most of which are new to science, in samples taken from showerheads and toothbrushes. The viruses, however, are unlikely to affect humans. They are bacteriophages, a type of virus that preys on bacteria. The expedition into bathroom biodiversity was recently published in the journal F...

906: Managing Invasive Plants And Ticks Together | Clue Into The Evolution Of The Bird Brain 19.11.2024

Researchers are connecting two ecological problems in the Northeast in hopes of reducing the risk of tick-borne illnesses. Also, a “one-of-a-kind” fossil of Navaornis hestiae helps fill a giant gap in scientists’ understanding of how bird brains evolved. Managing Some Invasive Plants Might Reduce Blacklegged Ticks In much of the eastern US, October and November usher in an autumn peak of the black...

905: The Gurgling, Growling History Of The Gut 18.11.2024

Despite advances in scientific research, the stomach remains a subject of mystery and intrigue. After all, it’s nearly impossible to ignore its gurgles and growls. Some cultural understanding of the gut has changed too—from an unruly being that must be fed and placated, to a garden ecosystem that is to be nourished in order to flourish. And if you’re a frequent listener of Science Friday, you’re f...

904: At COP29, The World’s Top Polluters Are No-Shows | Walking Pneumonia Is Spiking 15.11.2024

Leaders from the top-polluting countries, like the US and China, aren’t showing up to the UN’s big climate conference in Azerbaijan. And, walking pneumonia typically affects school-age kids, but the CDC reports a rise in cases in children aged 2-4. At COP29, The World’s Top Polluters Are No-Shows The United Nations’ annual international climate conference, COP29, got underway this week in Baku, Az...

903: Oliver Sacks Searched The Brain For The Origins Of Music 14.11.2024

Today, November 8, 2024, marks Science Friday’s 33rd broadcast anniversary. One of the most beloved interviewees on Science Friday over the years was the late neurologist and author Dr. Oliver Sacks, who shared his insights into neuroscience, art, and what it means to be human . Recently, Sacks’ long-time collaborator Kate Edgar published a book of Dr. Sacks' letters. And earlier this fall, the Ne...

902: CAR-T Cell Therapy For Autoimmune Diseases | Measuring Early Life Adversity—In Marmots 13.11.2024

In a Chinese study, donor CAR-T cells sent autoimmune diseases into remission. There’s hope that the therapy is scalable. And, scientists used decades of yellow-bellied marmot research to find a way to measure how adverse events affect wild animals’ survival. CAR-T Cell Therapies Show Promise For Autoimmune Diseases For decades, immunologists have explored CAR-T cell therapy as an effective tool t...

901: Your Arm Position Can Make Blood Pressure Readings Inaccurate 12.11.2024

Think back to the last time you went to the doctor’s office. Chances are, at the start of the visit, they took your temperature, pulse, and blood pressure—your “vitals.” But how did they take your blood pressure? The medical literature that describes safe blood pressure ranges is all based on readings taken with the patient sitting with feet flat on the floor, legs uncrossed, back supported, and t...

900: Why Do We Keep Widening Highways If It Doesn’t Reduce Traffic? 11.11.2024

Have you ever been stuck in traffic and thought, if only this highway was a little wider so it could fit more car s? You aren’t alone. Many states have been expanding their highways . New York Governor Kathy Hochul recently announced a $1.3 billion project to expand one of the state’s highways for an estimated maximum six-minute travel savings. Other highway-widening projects are underway in Texas...

899: Ballot Measures Passed To Protect Abortion Rights | New Largest Prime Number 08.11.2024

Abortion was on the ballot in 10 states, and seven of them passed constitutional amendments defending abortion rights. Also, this ginormous number has a whopping 41,024,320 digits, which isn’t very helpful for mathematicians but is certainly exciting for math nerds. Seven States Passed Ballot Measures To Protect Abortion Rights This week, science was on the ballot in many states. Voters across the...

898: Chickens Have Friendships And Reputations | Tourist Photos May Help Map Penguin Colonies 07.11.2024

Author and naturalist Sy Montgomery discusses chicken intelligence and her experience raising a flock in New Hampshire. And, snapshots from over the years could provide researchers with valuable data about how penguin colonies have shifted. Chickens Have Friendships, Memories, And Reputations Chickens don’t exactly have a reputation of being the sharpest creatures in the animal kingdom. Yet, talk...

897: The Clean Air Act Has Saved Millions Of Lives—But Gaps Remain 06.11.2024

In the 1960s, the urban air pollution crisis in America had reached a fever pitch: Cities were shrouded in smog, union steelworkers were demanding protections for their health, and the Department of Justice was mounting an antitrust lawsuit against the Detroit automakers for conspiracy to pollute. But all that changed when Richard Nixon signed the Clean Air Act of 1970 . The law set national limit...

895: How Does Long-Distance Running Affect Your Body? 05.11.2024

On Sunday, more than 50,000 athletes are expected to compete in the New York City Marathon, one of the largest, and most elite marathons in the world. Running a continuous 26.2 miles is a major physical challenge. But what exactly is happening in the body when running such a long distance? Joining guest host Rachel Feltman to answer questions from long-distance runners is Dr. Brandee Waite, Direct...

896: Gender-Affirming Care Is On The Line In This Election 04.11.2024

Gender-affirming care is on the ballot in this presidential election. These treatments, which can include hormone therapy and surgeries, can be lifesaving for trans people. But they could be impacted by the results of this election. This year alone, states have considered 182 bills aimed at prohibiting gender-affirming care. It’s become a central part of Donald Trump’s campaign, which has stated t...

894: Maine Offshore Wind Auction Draws Few Bids | An Artist Combines Indigenous Textiles With Modern Tech 01.11.2024

Two years ago, energy companies scrambled for offshore wind contracts. At a recent auction, the demand was significantly lower. Plus, artist Sarah Rosalena uses Indigenous weaving, ceramics, and sculpture practices to create art that challenges tech’s future, in a segment from earlier this year. Maine Offshore Wind Auction Draws Few Bids Offshore wind is coming to the Gulf of Maine. Earlier this w...

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