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Updated 09/08/2017
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Updated 13/10/2023
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Updated 21/05/2019
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Updated 13/04/2020

31/12/2024

Jane Goodall On Life Among Chimpanzees

Few living scientists are as iconic as Dr. Jane Goodall. The legendary primatologist spent decades working with chimpanzees in Tanzania’s Gombe National Park. More recently, Goodall has devoted her time to advocating for conservation, not just in Africa, but worldwide. Ira spoke with Goodall in 2002, after she had published her book The Ten Trusts: What We Must Do to Care for the Animals, and an IMAX film about her work with chimpanzees had just been released. Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

31/12/2024

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30 min
22/11/2024

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

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 TestOn Tuesday, the rocket company SpaceX conducted another test flight of its Starship spacecraft. In the uncrewed mission, the sixth test of the system, the company was seeking to test its ability to restart the Starship engines while in orbit, a function that’s necessary for in-space maneuvering. The rocket did launch successfully, and the engine test worked. However, at the last minute the company elected not to try to repeat an October maneuver in which it caught a returning SuperHeavy rocket booster at the launch tower, citing safety concerns. SciFri’s Charles Bergquist joins guest host Kathleen Davis to talk about the launch, and related research into the tremendous sound created by the system’s launch and reentry. They also discuss other stories from the week in science, including the discovery of a saber-toothed kitten in Siberian permafrost, efforts to use light to help destroy PFAS chemicals, a company using Pokemon Go game data to train an AI, and more. Michigan-Based Team To Resuscitate Shipwrecked Rye SeedsIn 1878, a wooden schooner named the James R. Bentley set sail from Chicago to Buffalo, New York. But strong winds and rough waters damaged the ship, and it sank to the bottom of Lake Huron. The crew was saved, but the ship’s cargo—a large shipment of rye—sank with it. In the years since the shipwreck, that particular variety of rye has faded out of existence. Now, almost 150 years later, a Michigan-based team is trying to bring the long-lost rye back to life. They dove to the shipwreck, retrieved a tube full of seeds, and are planning to use gene technology to recreate the rye variety. Their goal is to encourage farmers to grow it, so that distillers can use it to make whiskey. SciFri producer Kathleen Davis talks with Dr. Eric Olson, professor of wheat breeding and genetics at Michigan State University, and Chad Munger, founder and CEO of Mammoth Distilling. Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

22/11/2024

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25 min
16/04/2025

The Navajo Researcher Reviving A Desert Peach | A New Dino With Blade-Like Horns

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 PeachWhen 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 Native communities have cultivated this tree since the 1600s. But many of the orchards were intentionally destroyed by colonizers hundreds of years ago, and the remaining trees are now scattered across the region. A local scientist and member of the Navajo Nation is on a mission to track down Southwest peach trees so we can learn more about how these peaches are so well-suited to grow in the desert. At a live event in Salt Lake City in March, Host Flora Lichtman spoke with Reagan Wytsalucy, plant scientist and assistant professor at Utah State University Extension in San Juan County, Utah. She researches traditional Native American crops, including the Southwest peach. Meet Lokiceratops, A Giant Dinosaur With Blade-Like HornsThe Intermountain West is a dinosaur nerd’s dream because it’s such a hotspot for fossils. Some of the most famous dino fossils in the world, like T. rex, triceratops, and stegosaurus can be found in western North America. So, of course, Science Friday couldn’t go to Salt Lake City, Utah, without digging into some dinosaur science. At a live event in Salt Lake City in March, Host Ira Flatow spoke with the scientists behind the discovery of Lokiceratops, a large dinosaur with impressive horns that was unveiled in 2024. Dr. Mark Loewen, vertebrate paleontologist at the University of Utah and the Natural History Museum of Utah; and Savhannah Carpenter, paleontologist and school outreach coordinator at the Natural History Museum of Utah, discuss how they figured out Loki was a new dinosaur, the process of describing and naming the fossil, and what it taught them about dino evolution. Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

16/04/2025

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32 min
07/03/2025

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

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 CountryScientists and defenders of science are gathering in cities across the U.S. today as part of Stand Up for Science rallies, events to protest recent political interference by the Trump administration in science funding. The main rally in Washington, D.C. features speakers including Bill Nye, Dr. Frances Collins and Dr. Atul Gawande, and will advocate for ending censorship, expanding scientific funding, and defending diversity, equity, and inclusion. Host Flora Lichtman speaks to science reporter Anil Oza, a Sharon Begley Fellow at STAT and MIT, about the runup to Stand Up For Science, and what he’s heard from organizers and attendees. Then, Flora speaks with two listeners, D.C.-based planetary scientist Mike Wong and University of Louisville student Emily Reed, about why they’re fired up to attend local rallies. Touchdown For The Blue Ghost Lunar LanderLast weekend, the Blue Ghost lander, built by the Texas-based company Firefly Aerospace, became the first commercial spacecraft to execute a fully successful landing on the surface of the moon. On board the lander were 10 NASA instruments flown as part of NASA’s Commercial Lunar Payload Services (CLPS) initiative. The lander will be in operation on the moon over the course of one lunar day (about 2 Earth weeks), before running out of battery power as the lunar night falls. Kevin Scholtes, an engineer at Firefly Aerospace, and Dr. Nicky Fox, associate administrator for the NASA Science Mission Directorate, join Host Flora Lichtman to talk about building a commercial spacecraft, the role of private companies in spaceflight, and some of the science the mission aims to achieve. Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

07/03/2025

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28 min
04/12/2024

'They Might Be Giants' Sings About Science

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 science tunes. The transcript for this segment is available at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

04/12/2024

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27 min
06/12/2024

Supreme Court Case On Regulation Of Vapes | Predicting Lithium-Ion Battery Explosions

The Supreme Court hears a case centering on the FDA’s denial of applications for nicotine-based vapes containing flavored liquid seen as addictive for young people. And, damaged lithium-ion batteries can cause deadly explosions. An algorithm could help detect when they’re about to happen. Supreme Court Hears Case On FDA Regulation Of Flavored VapesOn Monday, the US Supreme Court heard arguments in a case that could change the Food and Drug Administration’s power to regulate nicotine-based vapes. It revolves around the FDA’s denial of applications from two vape companies that sell flavored liquids in their products, citing that the liquids presented a danger in addicting young people to nicotine. But a lower court rejected that denial, saying the agency was inconsistent in its approval process. The decision could impact the FDA’s regulatory power to ban the sale of some of these vapes in the US. Ira Flatow is joined by Rachel Feltman, host of the Popular Science podcast “The Weirdest Thing I Learned This Week,” to talk about the health implications of the case. They also discuss other top science stories of the week, including why there’s been a large decrease in cervical cancer rates over the past decade, why Venus probably wasn’t able to support ancient life (contradicting some hopeful theories), and new information about when humans might’ve started to wear clothing, thanks to some clues from lice. A Warning For When A Lithium-Ion Battery Is About To ExplodeLithium-ion batteries are used in all sorts of electronics, like smart phones, laptops, and e-bikes. That’s because they can store a lot of energy in a small package. Unfortunately, this also means that when a battery is damaged, there’s a lot of energy to expel, which can lead to explosions and fires. While there are no national statistics available, in New York City alone, there have been 733 fires started by lithium-ion batteries since 2019, which killed 29 people and injured 442. Most of these fires are a result of e-bike or scooter batteries catching fire. Now, researchers have trained AI algorithms to be able to better predict when a lithium-ion battery is about to explode. The battery makes a hissing sound two minutes before an explosion. Ira talks with two researchers at the National Institute of Standards and Technology about their work on the subject: Dr. Andy Tam, mechanical engineer in the Fire Research Division, and Dr. Anthony Putorti, fire protection engineer and leader of the Firefighting Technology Group. Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

06/12/2024

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26 min
08/01/2025

Biologists Call For A Halt To ‘Mirror Life’ Research

You’re probably familiar with the concept of handedness—a glove made for your left hand looks basically like the one for your right hand, but won’t fit—it’s a mirror image. Many of life’s important molecules, including proteins and DNA, are chiral, meaning they can exist in either a left-handed or a right-handed form. But on Earth, nature only uses one version or the other in living organisms. Your proteins, for example, are all the left-handed version, while your DNA is all right-handed. With advances in synthetic biology, it could be possible to build an artificial organism that flips that shape, having right-handed proteins and left-handed DNA. Writing in the journal Science, an international group of researchers recently cautioned against anyone trying to create that sort of so-called mirror life, saying that it poses the threat of “unprecedented and irreversible harm” to human health and global ecosystems. Dr. Drew Endy, a synthetic biology researcher at Stanford University and one of the authors of that warning, joins Ira to discuss the concept of mirror life and why a group of researchers felt compelled to call for a halt to mirror life experiments. Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

08/01/2025

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18 min
21/11/2024

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

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, but it also forms gluten which makes the dough chewy. So, how can your pie dough be both soft and easy to handle? Use science—and a little bit of vodka. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

21/11/2024

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18 min
23/04/2025

Advances In Brain-Computer Interfaces For People With Paralysis

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 breakthrough, a person with paralysis in all four limbs was able to move a virtual quadcopter with extreme precision by thinking about moving it with their fingers. Another area of BCI research involves speech. Recent work has shown promise in allowing people with vocal paralysis to “speak” through a computer, using old recordings to recreate the person’s voice from before their paralysis. Joining Host Flora Lichtman to discuss the state of this technology, and where it may be headed, are Dr. Matthew Willsey, assistant professor of neurosurgery and biomedical engineering at the University of Michigan, and Dr. Sergey Stavisky, assistant professor of neurosurgery and co-director of the Neuroprosthetics Lab at the University of California, Davis. Transcript for this segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

23/04/2025

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19 min
20/11/2024

Bacteriophages Lurk In Your Bathroom, But Don’t Worry

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 Frontiers in Microbiomes. Around a hundred years ago in the former Soviet Union, there were major efforts to develop bacteriophages for medical use. The approach really didn’t catch on in Western countries, overshadowed there by the rise of conventional antibiotics like penicillin. But with some diseases developing resistance to those conventional antibiotics, there’s been increased interest in phages as part of an antibacterial toolkit. Dr. Erica Hartmann, an associate professor in the department of Civil & Environmental Engineering at Northwestern University, joins Ira to talk about what researchers found when they took a close look at a collection of bathroom samples, and how phage research has advanced in recent years. Transcript for this segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

20/11/2024

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18 min

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