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Science Friday

Science Friday is a captivating radio program and podcast that celebrates the wonders of science and the thrill of discovery. Hosted by Ira Flatow, this engaging show brings together leading scientists, researchers, and experts to explore the latest advancements, tackle intriguing questions, and shed light on the mysteries of our universe. From uncovering the secrets of the natural world to exploring cutting-edge technology, Science Friday invites you to embark on a fascinating journey into the realms of scientific exploration and understanding.

  • We’re bringing you a special bonus episode from our friends at the live call-in show “The Middle with Jeremy Hobson.” Jeremy is joined by Science Friday Host Flora Lichtman and theoretical astrophysicist Priya Natarajan to talk about how trust in science can be restored. It took a hit with the COVID-19 pandemic, and the Trump Administration has now elevated science skeptics to positions of power and proposed giant cuts in scientific research. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
  • All the pups we love—from chihuahuas to great danes—are descendants of the mighty gray wolf. But how did we end up with so many breeds? The story that's often told is that dog diversity really took off with the Victorians in the 1800s, but new research is unleashing a different tale. Host Flora Lichtman talks with bioarchaeologist Carly Ameen about the diversification of dogs. Plus, a long-running experiment to tame silver foxes is cluing us into how domestication happens. Canine researcher Erin Hecht gives us a glimpse into the experiment and what it tells us about domesticated brains.Guests:Dr. Carly Ameen is a bioarcheologist and lecturer at the University of Exeter in England.Dr. Erin Hecht is an evolutionary biologist at Harvard in Cambridge, Massachusetts. Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
  • We keep hearing that these are unprecedented times for science: scientific skeptics running federal agencies, growing mistrust of vaccines, and messaging from the highest levels of government that scientists are in the pocket of industry. To understand how unique this time really is, we’re talking to Naomi Oreskes, a science historian who has spent her career studying skepticism in science. She joins Host Flora Lichtman to discuss our current moment, and how ghostwriting in scientific papers is harming public trust in science.Guest: Naomi Oreskes is a professor of the history of science at Harvard University, based in Cambridge, MA.Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
  • In a speech last week in a speech at the World Economic Forum, President Trump said China was making a lot of wind turbines, but not using much wind power in their own country. Is that right? China studies professor Jeremy Wallace joins Host Ira Flatow to talk about the renewable energy landscape in China. They’ll dig into how China is flooding the world with affordable solar technology, making it the cheapest form of electricity in history. Plus, what energy tech China is manufacturing, what it's using domestically, and what it's exporting.Guest: Dr. Jeremy Wallace is the A. Doak Barnett Professor of China Studies at Johns Hopkins UniversityTranscripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
  • Forty years ago this week, the space shuttle Challenger exploded in flight, 73 seconds after liftoff from Cape Canaveral. All seven crew members were killed. In the months that followed, the tragedy was traced to a failed O-ring in one of the shuttle’s rocket boosters. Now, with the Artemis II mission preparing for launch to lunar orbit, what have we learned about spaceflight and risk? Former astronaut Jim Wetherbee joins Host Ira Flatow to remember the Challenger tragedy, and look ahead to the age of private spaceflight and the upcoming Artemis II mission.Guest: Jim Wetherbee is a former NASA astronaut, the former head of flight crew operations for NASA, and the author of Controlling Risk: Thirty Techniques for Operating Excellence.Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
  • A rogue strain of flu, subclade K, has sickened more than 19 million people in the US so far this season. And the flu shot hasn’t offered that much protection. What’s going on with this superflustorm?Joining Host Flora Lichtman with some answers is Jennifer Duchon, a pediatric infectious disease specialist.Guest: Dr. Jennifer Duchon is a pediatric infectious disease specialist at Mount Sinai Hospital in New York.Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
  • This time last year, Los Angeles was on fire, and more than 16,000 homes and buildings burned to the ground. Cars, batteries, solar panels, insulation, and cleaning supplies went up in flames, releasing chemicals like lead, benzene, and asbestos into giant smoke plumes that wafted across the city.A year later, scientists are trying to understand the fallout of this urban wildfire—what chemicals got left behind, how to remediate them, and the threats to our health. Host Flora Lichtman talks with Yifang Zhu and Francois Tissot, who are at the forefront of this research. And for one of them, this work is personal.Guests:Dr. François Tissot is a professor of geochemistry at Caltech in Pasadena, California. Dr. Yifang Zhu is a professor of environmental health sciences at the University of California, Los Angeles.Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
  • Deepfakes have been everywhere lately, from fake AI images of Venezuelan leader Nicolás Maduro following his (real) capture by the United States, to X’s Grok AI generating nonconsensual images of real people in states of undress. And if you missed all that, you've almost certainly had your own deepfake close encounter in your feed: maybe rabbits bouncing on a trampoline or an unlikely animal friendship that seems a little too good to be true.Deepfakes have moved beyond the realm of novelty, and it’s more difficult than ever to know what is actually real online. So how did we get here and what is there, if anything, to do about it?Joining Host Flora Lichtman are Hany Farid, who’s studied digital forensics and how we relate to AI for over 25 years, and Sam Cole, a journalist at 404 Media who’s covered deepfakes and their impact since 2017.Guests:Dr. Hany Farid is a professor of electrical engineering and computer sciences at University of California, Berkeley.Sam Cole is a journalist at 404 Media, based in New York, NYTranscripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
  • When it comes to “bad” cholesterol, most cardiologists say lower is better. But what’s the best way to get that number down? Can diet and exercise alone do the job?Cardiologists Kiran Musunuru and Neha Pagidipati join Host Ira Flatow for a look at the latest in cholesterol-lowering treatments, including CRISPR technology that could turn off cholesterol-making genes for life. How does it work, and is it safe?Guests:Dr. Kiran Musunuru is the scientific director of the Center for Inherited Cardiovascular Disease at the Perelman School of Medicine at the University of Pennsylvania.Dr. Neha Pagidipati is the director of the Cardiometabolic Prevention Clinic at the Duke University School of Medicine in Durham, NC.Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
  • An Associated Press investigation found that more than 420 “anti-science” bills were introduced in statehouses last year, targeting protections around public health issues like vaccines, milk safety, and fluoride. As state legislatures come back into session, what can we expect for 2026? Joining Ira Flatow is Laura Ungar, science and medical reporter for the Associated Press.Plus, reporter Elise Plunk joins Host Flora Lichtman to discuss the complex case of a citizen-led pollution monitoring program in Louisiana that persists despite a law banning the use of its data.Guests: Laura Ungar is a science and medical reporter for the Associated Press.Elise Plunk is an environmental reporter and Report for America corps member at the Louisiana Illuminator.The transcript for this episode is available at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.