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Science Friday

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.

society & culture

All Episodes

20:52

1016: $8 Billion Of Climate Tech Projects Were...

Science Friday ·

2025/04/25

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 Months In the first three months of the Trump administration, officials have been aggressive in cancelling climate change related efforts, from enacting layoffs at large

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19:13

1014: Advances In Brain-Computer Interfaces For...

Science Friday ·

2025/04/23

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

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24:38

1011: Possible Signature Of Life Detected On...

Science Friday ·

2025/04/18

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—Maybe In 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

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32:29

1009: The Navajo Researcher Reviving A Desert Peach |...

Science Friday ·

2025/04/16

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 Peach When 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

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29:59

1004: What Artificial General Intelligence Could Mean...

Science Friday ·

2025/04/09

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

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16:38

1003: Climate Change Has Made Allergy Season Worse....

Science Friday ·

2025/04/08

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

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18:00

1002: Microdosing Peanut Butter Could Alleviate Some...

Science Friday ·

2025/04/07

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

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12:22

1001: The Department Of Health And Human Services...

Science Friday ·

2025/04/04

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

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18:13

999: Massive Iceberg Breaks Off Antarctica, Revealing...

Science Friday ·

2025/04/02

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

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18:27

998: TikTok Is Shaping How We Think About ADHD

Science Friday ·

2025/04/01

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

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18:43

997: Engineering Lessons One Year After The Baltimore...

Science Friday ·

2025/03/31

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

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18:45

994: Developing Faster, Simpler Tools To Treat...

Science Friday ·

2025/03/26

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

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19:18

993: Author John Green On The Many Ways Tuberculosis...

Science Friday ·

2025/03/25

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

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18:38

992: DESI Data Strengthens Evidence Of Change In Dark...

Science Friday ·

2025/03/24

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

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19:20

991: NASA Astronauts Return To Earth After Extended...

Science Friday ·

2025/03/21

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 days longer than their initial planned mission—NASA astronauts Butch Wilmore and Suni Williams landed

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18:48

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

Science Friday ·

2025/03/19

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

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19:16

988: Fungi Create Complex Supply Chains | A Rookie...

Science Friday ·

2025/03/18

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 trees. But actually, there’s a lot of action happening underneath your feet. Beneath you is a complex

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25:24

987: 10% Of NOAA Staff Laid Off | Frozen Funds Leave...

Science Friday ·

2025/03/17

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, impacts and provides services for Americans every day. The agency releases daily weather forecasts and

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19:01

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

Science Friday ·

2025/03/14

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

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17:12

984: How Narwhals Use Their Tusks To Hunt And Play |...

Science Friday ·

2025/03/12

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 arctic whales with long, twirly tusks protruding from their foreheads, like a creature out of a fairy tale

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