Science Friday

What have we learned in recent years about black holes? Can entangled quantum particles really communicate faster than light? What’s the story behind Schrödinger’s Cat? And, in this weird liminal space between the holidays, what even IS time, really? Physicist Sean Carroll and Host Ira Flatow tackled those big questions and more at a recent event at WNYC’s Greene Space in New York City. Carroll’s book The Biggest Ideas in the Universe: Space, Time, and Motion is the SciFri Book Club pick for December. Guest: Dr. Sean Carroll is the Homewood Professor of Natural Philosophy at Johns Hopkins University in Baltimore.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.

Health psychologist Dr. Kari Leibowitz traveled to some of the coldest, darkest places on earth to learn how people there don’t just survive, but thrive in winter. She says that one of the key ingredients is adopting a positive wintertime mindset by focusing on and celebrating the good parts of winter.In a conversation from January, Flora Lichtman talks with Dr. Kari Leibowitz, author of How to Winter: Harness Your Mindset to Thrive on Cold, Dark, or Difficult Days, about saunas, cold plunges, candles, and other small ways to make winter a season to look forward to rather than dread. Plus, she responds to some of our audience’s own tips to make the season enjoyable.Guest: Dr. Kari Leibowitz is a health psychologist and author of How to Winter: Harness Your Mindset to Thrive on Cold, Dark, or Difficult Days. She’s based in Amsterdam, The Netherlands.Transcript is available at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

Imagine sitting at home and then all of a sudden you hear a men’s choir belting out “The Star Spangled Banner.” You check your phone, computer, radio. Nothing’s playing. You look outside, no one’s there. That’s what happened to neurologist Bruce Dobkin after he received a cochlear implant. He set out to learn everything he could about the condition, called musical hallucinosis.In a story from August, Host Ira Flatow talks with Dobkin about his decision to publish his account in a medical journal and why the condition is more common than he realized.Guest: Dr. Bruce Dobkin is a neurologist at UCLA Health.Transcript is available at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

Koalas with the bodies of lions. Elephants the size of your dog. Gigantic, 8-foot-tall sloths. These aren’t creatures found in science fiction: They walked our planet a million years ago, during the Ice Age.That’s the focus of the third season of the Apple TV series “Prehistoric Planet,” which uses the latest paleontology research and photorealistic CGI to reimagine the lives of ancient creatures. So far, the series has focused on dinosaurs, but now it’s taking that same approach to the huge and strange-looking animals that roamed the tundras and deserts of the Ice Age.Joining Host Ira Flatow to thaw out the new research featured in the show are two of its scientific consultants, paleontologist Darren Naish and La Brea Tar Pits curator Emily Lindsey.Guests: Dr. Darren Naish is a paleozoologist and author based in Southampton, U.K.Dr. Emily Lindsey is a paleoecologist, curator, and excavation site director at the La Brea Tar Pits and Museum in Los Angeles, California. Transcript available at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

Since 1955, when Congress passed the Polio Vaccination Assistance Act, the federal government has been in the business of expanding access to vaccines. That is, until this year.2025 has been filled with almost daily news stories about federal agencies, under the direction of Health Secretary Robert F. Kennedy Jr., casting doubts about vaccine safety, including unsubstantiated claims about links to autism. These agencies have also been taking steps that could roll back access to vaccines, including for hepatitis B and COVID-19.But we’ve found it very hard to sort out what these talking points and recommendations mean in practice. KFF Health News journalists Jackie Fortiér and Arthur Allen join Host Flora Lichtman to discuss, one year in, what this administration’s stance on vaccines has meant practically—for vaccine access, and vaccine uptake.Guests: Arthur Allen is senior correspondent at KFF Health News and author of Vaccine: The Controversial Story of Medicine's Greatest Lifesaver.Jackie Fortiér is a Peggy Girshman fellow covering health policy at KFF Health News.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.