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 field of mathematics.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.

A sweeping new study on one of the most beloved insects, maybe the only truly beloved insect—the butterfly—details its rapid population decline in the United States. The new research, published in the journal Science widens the butterfly net and looks at how more than 500 species have fared over the past 20 years.Researchers found that many populations are taking a nosedive. What’s causing the downswing, and is there anything we can do?Host Flora Lichtman talks with two of the study authors, Dr. Elise Zipkin, Red Cedar distinguished professor of quantitative ecology and director of the ecology, evolution and behavior program at Michigan State University; and Dr. Nick Haddad, professor of integrative biology also at Michigan State University in East Lansing, Michigan.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.

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.

Last year, 9,000 deceased donor kidneys were discarded due to storage and time limitations. A kidney “life support” machine could change that. Also, the SS United States will join Florida’s 4,300 artificial reefs—human-made places for fish and other marine life to live. How do these reefs work?The Effort To Save Thousands Of Donor Kidneys From Being WastedSylvia Miles was diagnosed with lupus in 2006, a chronic autoimmune disease that causes the body’s immune system to attack healthy tissue—including her kidneys.Miles, who lives in Indianapolis, was later diagnosed with advanced kidney disease, and was in need of a kidney transplant.Kidney diseases are one of the leading causes of death in the United States with 37 million people living with chronic kidney disease. Together with advanced kidney disease—the later stage of CKD—it cost Medicare billions of dollars in recent years.People like Miles, who need a kidney transplant, wait an average of five years—often on dialysis.But despite the long waitlists and organ shortages, around 9,000 kidneys from deceased donors last year were discarded due to perceived issues with their viability. A new Indiana-based organization, 34 Lives, is working to limit that waste and rehabilitate the organs.Read the rest of this article on sciencefriday.com.Ocean Liner SS United States Will Become An Artificial ReefThis week, after a notable career, the SS United States, a 1950s ocean liner, took her sunset cruise. Like many retirees, the ship is heading south—from Philadelphia to Florida—where she’ll be reinventing herself. In this next chapter, the SS United States will have new passengers: fish and other marine creatures. The ship will be sunk to the bottom of the sea and turned into an artificial reef, joining more than 4,300 artificial reefs off the coast of Florida.Other sunken ships have become artificial reefs in the past, which have helped boost marine life as well as scuba diving and fishing tourism. Host Flora Lichtman speaks with Scott Jackson, a regional specialized agent with the Florida Sea Grant and University of Florida IFAS extension, about the science behind artificial reefs, and what has been learned from decades of research.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.

A study finds that Peto’s Paradox, which states that larger animals are no more likely to get cancer than smaller ones, may not hold up. Also, a nearly complete predator skull was found in the Egyptian desert. Its lineage indicates that it was a top carnivore of the age.What Does An Animal’s Size Have To Do With Its Cancer Risk?If you throw a huge party, there’s more of a chance of problems than if you host a quiet get-together for a couple of friends. The logic is simple: Having more people around means more opportunities for chaos. Similarly, it would seem to make sense that in animals, a bigger species with more cells might have a greater chance of something going wrong with one of those cells, including mutations leading to cancer.Back in 1977, a British epidemiologist named Richard Peto observed that that didn’t seem to be true. Bigger animals didn’t seem to have a greater risk of cancer than smaller ones. That became known as Peto’s Paradox, and has been a topic of debate among cancer biologists ever since.Research published this week in the Proceedings of the National Academy of Sciences takes a new look at Peto’s Paradox using an unusual set of data—death reports from zoos around the world. Dr. Sarah Amend of Johns Hopkins Medical School joins Host Flora Lichtman to explain why, in their findings, Peto’s Paradox doesn’t seem to hold up—and what studying animal cancer rates could teach scientists about improving human health.Meet Bastetodon, A 30 Million-Year-Old Apex PredatorOnce upon a time, some 30 million years ago, what is now Egypt’s Western Desert was a lush forest. Humans had not evolved yet, the nearest relatives being monkey-like creatures. And through those forests stalked Bastetodon syrtos, a newly described apex predator from an extinct lineage known as the Hyaenodonts—one of the top carnivores of the age.Researchers recently discovered a nearly complete skull of the creature. They reported on the find in the Journal of Vertebrate Paleontology. Host Flora Lichtman talks with Shorouq Al-Ashqar of the Mansoura University Vertebrate Paleontology Center about the discovery, and the picture it helps paint of ancient life.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.

Pancreatic cancer is notoriously difficult to treat, and about 90% of diagnosed patients die from the disease. A team at Memorial Sloan Kettering has been working to improve those outcomes by developing a new mRNA vaccine for pancreatic cancer.A few years ago, the team embarked on a small trial to test the vaccine’s safety. Sixteen patients with pancreatic cancer received it, and even though it was a small study, the results were promising: Half the participants had an immune response, and in those patients the cancer hadn’t relapsed after 18 months.This week, the team released a new study in Nature following those same patients, and found six out of eight who responded to the vaccine in the first study did not have their cancer return more than three years later.Joining host Flora Lichtman to talk about these results, and what they could mean for the future of cancer treatment, is study author and surgeon Dr. Vinod Balachandran, director of The Olayan Center for Cancer Vaccines at Memorial Sloan Kettering, based in New York City.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.

Last week, some 3,500 people from across scientific fields gathered in Boston for the annual meeting of the American Association for the Advancement of Science (AAAS). The organization’s CEO, Dr. Sudip Parikh, gave a rousing speech to attendees.“Destruction for the ill-conceived notion of cutting costs didn’t put an American on the moon, and it didn’t wipe smallpox from the face of the Earth,” Parikh said in opening remarks.He was referring, of course, to the huge funding cuts and mass firings happening across federal science and health agencies under the Trump administration. Over the last few weeks, news of these cuts has been frequent—along with the cancellation of grants that include certain prohibited words and the disappearance of data from agency websites.So what’s happening, and how should the scientific community respond? Host Flora Lichtman sat down with Dr. Sudip Parikh to discuss the importance of this point in time for American science and technology, what cuts for “efficiency” are getting wrong, and what’s at stake in the next few weeks.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.

Finding the original tomb of the royal is one of the most significant developments in Egyptian archeology in recent history. Also, a video of a gloriously creepy anglerfish inspired tears and poetry online. But why was this deep-sea dweller near the surface at all?Royal Tomb Of Egyptian King Thutmose II UnearthedA British-Egyptian team has made one of the most significant Egyptian archeological finds in recent history: the tomb of pharaoh King Thutmose II, who ruled sometime between 2000 and 1001 BCE. This is the first tomb of a pharaoh unearthed since Tutankhamun’s in 1922.Thutmose II’s mummified remains were found two centuries ago, but they had been moved from his original tomb, the location of which remained a mystery until now. Part of the reason why his tomb’s location was such a mystery was that Thutmose II was buried in an area associated with the wives of Egyptian kings, about 1.5 miles west of Egypt’s famous Valley of the Kings.Joining Host Flora Lichtman to talk about this and other science stories of the week is Maggie Koerth, science writer and editorial lead of CarbonPlan, based in Minneapolis, Minnesota.Why The Internet Was Captivated By A Hideous FishLast week, a viral video likely floated to the top of your feed: a rare black seadevil anglerfish, which looks like a floating head with a frightening amount of teeth and two cloudy eyes, swimming in azure waters. The fish showed up near Spain’s Canary Islands, off the northwestern coast of Africa. It made the news because it was spotted near the surface, while anglerfish normally reside in the deep ocean.So why was she paddling so close to the surface? Was she sick? How unusual is this? And also, why do they even look like that? We had questions.Host Flora Lichtman talks with Dr. Kory Evans, assistant professor of biosciences at Rice University, to separate fact from fish-ction. He also explains new research he helped conduct about the evolutionary history of anglerfish, which could help explain why they look the way they do.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.

We have lots of expressions to describe the pain of loss—heartache, a broken heart, a punch in the gut. These aren’t just figures of speech: While grief is an emotional experience, it’s also a physical one. Studies show that grief can change your physiology, most dramatically in the cardiovascular and immune systems.One staggering finding? A heart attack is 21 times more likely to happen in the 24 hours after the death of a loved one. And after the death of a parent, risk of ischemic heart disease rises by 41%, and risk of stroke increases by 30%.Dr. Mary-Frances O’Connor has dedicated her career to understanding the physiology behind grief and grieving. She joins Host Flora Lichtman to discuss what she’s learned over the years, and her new book The Grieving Body.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.

Can Men and Women (Baboons) Really Just Be Friends?In the romantic comedy “When Harry Met Sally,” the central premise, as Billy Crystal and Meg Ryan’s characters stay friends throughout the years, is, can men and women really just be friends?In the movie, the answer is no, not really. Spoiler alert: They do get together in the end. But what if we take that concept and bring it to the animal kingdom, specifically to primates?The Kinda baboon is known for its distinct social behaviors. Individuals form long-term, social bonds, and those relationships are seen, uniquely, between male and female baboons. Over nine years, researchers studied the Kinda baboon, a kinder, gentler species of baboon, to learn more about their social lives. Kindas are unique among baboons because they’re the least sexually dimorphic: males and females are close to the same size, making them a better analog for us humans.So can male and female baboons really be just friends? Much like the movie, long friendships do happen between Kindas—but there also appears to be a benefit during mating season.Joining Host Flora Lichtman to talk about her work with these baboons is Dr. Anna Weyher, founder of the Kasanka Baboon Project in Zambia. Weyher has studied Kinda baboons for over a decade.The Best Bear Deterrent May Be DronesWhat do you do when a bear keeps coming too close to people, and doesn’t take the hint to stay away? It’s a serious problem, because human-wildlife conflict can be dangerous for both the people and animals involved. Wildlife managers have for years used a collection of deterrents, including firecracker noises, rubber bullets, and trained dogs, to try to chase bears away from human habitations.Writing in the journal Frontiers in Conservation Science, former Montana bear management specialist Wesley Sarmento claims that a high-tech approach may be more effective: drones. Sarmento joins Host Flora Lichtman to discuss his experiences with hazing stubborn bears.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.

The North and South Poles, also known as Earth’s iceboxes, help cool the planet, store fresh water, influence weather patterns, and more. They’re also the fastest warming places on Earth.A new book called Ends of The Earth: Journeys to the Polar Regions in Search of Life, the Cosmos, and Our Future illustrates the wonders of Antarctica and the Arctic—and the lengths scientists go to to study them before it’s too late.Host Ira Flatow talks with author Dr. Neil Shubin, an evolutionary biologist at the University of Chicago, about some of the wonders found at the ends of the Earth, and the threats they’re facing.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.

It’s the first FDA approval for a pain medication in 25 years. How does the drug work, and who is it for? Also, non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.The FDA Approves A New, Non-Opioid PainkillerIn January, the Food and Drug Administration approved a new pain medicine called Journavx (suzetrigine), made by Vertex Pharmaceuticals. It’s the first time in 25 years the agency has given the green light to a new painkiller. Notably, it’s not an opioid and, according to the company, it’s not addictive. Unlike opioids, which act directly on the brain, Journavx instead blocks nerve endings across the body that transmit pain.Host Ira Flatow is joined by Dr. Sean Mackey, a professor of anaesthesiology and pain medicine at Stanford University and chief of the Division of Stanford Pain Medicine, to discuss how the new drug works, who should take it, and what its limitations are.Might Uranus And Neptune Have Deep, Multi-Layer Oceans?We’ve got a pretty good idea about what’s beneath the surface of our nearest planetary neighbors, like Mars. But as you get farther out into the solar system, our knowledge becomes scarce. For instance, what’s inside the so-called ice giants, Neptune and Uranus?Recent research based on computer simulations of fluids hints that the planets could contain vast multi-layered oceans, as much as thousands of miles deep. A layer of water that is on top of—but doesn’t mix with—a deeper layer of hydrocarbons could help explain strange magnetic fields observed during the Voyager mission.Dr. Burkhardt Militzer, a professor of earth and planetary sciences at UC Berkeley, wrote about this idea in the Proceedings of the National Academy of Sciences. He joins Host Ira Flatow to explain his theories.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.