Host Rachel Feltman, alongside leading science and tech journalists, dives into the rich world of scientific discovery in this bite-size science variety show.
We’re taking a field trip to the U.S.’s only particle collider, the Relativistic Heavy Ion Collider (RHIC), housed at Brookhaven National Laboratory. Staff scientist Alex Jentsch takes listeners through some basic terminology and interconnected technologies that help Brookhaven researchers probe questions about our unseen universe. The RHIC is winding down in preparation for the new Electron-Ion Collider, which could help us discover the secrets of the “glue” that holds visible matter together. ...
Casey Johnston is not your typical health and fitness influencer. She joins host Rachel Feltman to discuss how finding joy in strength training changed her relationship to fitness, food and body image. Johnston’s new book, A Physical Education, reflects on engaging with exercise in a balanced way. Recommended reading: You can get Johnston’s book A Physical Education here You can also get Johnston’s training program book LIFTOFF: Couch to Barbell here Read her newsletter She’s a Beast Or follow h...
The congressionally mandated National Climate Assessment grinds to a halt. Amazon launches its first round of Internet satellites. The European Space Agency launches a satellite to measure the biomass of Earth’s trees. New data from NASA’s Juno spacecraft offer insights into Jupiter and Io. Claims of Tyrannosaurus rex leather are, predictably, misleading. Recommended reading: Trump Dismisses Scientists Writing Key Climate Reporthttps://www.scientificamerican.com/article/trump-dismisses-scientist...
Conservationists are ringing the alarm about the fungi facing extinction. The International Union for Conservation of Nature (IUCN) Red List features vulnerable pandas and endangered tortoises, but it also highlights more than 400 fungi species that are under threat. Gregory Mueller, chief scientist emeritus at the Chicago Botanic Garden and coordinator of fungal conservation programs at the IUCN, and Anders Dahlberg, a professor of mycology at the Swedish University of Agricultural Sciences, ex...
Griefbots, artificial intelligence chatbots that mimic deceased loved ones, are increasingly in popularity. Researcher Katarzyna Nowaczyk-Basińska reflects on what death, grief and immortality look like in the digital age. She shares insights from a project that she is leading as a AI2050 Early Career Fellow: Imaginaries of Immortality in the Age of AI: An Intercultural Analysis. Plus, we discuss the ethical and privacy concerns surrounding how the data of the deceased are used and what consumer...
We’re taking a break from our usual weekly news roundup to do a little time travel. In 1925 Scientific American covered a total solar eclipse that featured some surprising solar shadow play and a prediction about today’s eclipses. Plus, we review some long-gone sections of the magazine that tried to verify mediums and show off zany inventions! Recommended reading: You can read more from our archives here: https://www.scientificamerican.com/archive/issues/ E-mail us at [email protected] if...
Wild NYC author Ryan Mandelbaum takes host Rachel Feltman through New York City’s Prospect Park to find urban wildlife. They explore the city’s many birds, surprising salamanders and unexpected urban oases. Plus, they discuss what the rules of engagement with wildlife are and how you can find wildlife in your own urban or suburban environment. Recommended reading: Read Wild NYC: Experience the Amazing Nature in and around New York City, which is out now. Listen to our episode on protecting wildl...
When writer Stephen S. Hall was a child, he would capture snakes—much to his mother’s chagrin. Now the science journalist is returning to his early fascination In his latest book, Slither: How Nature’s Most Maligned Creatures Illuminate Our World. The book explores our long, complicated relationship with snakes. Plus, Hall chats about humans’ and other animals’ evolved reactivity to the presence of snakes and the adaptations that keep snakes alive in even the most extreme environments. Recommend...
Measles cases are going up—and a federal scientist has warned that case counts have probably been underreported. Another vaccine-preventable illness, whooping cough, sees a troubling increase in cases. Ancient humans found sun-protection solutions when Earth’s magnetic poles wandered. A colossal squid has been captured on video in its natural habitat for the first time. Plus, we discuss evidence that Mars once had a carbon cycle and a planet that is orbiting a pair of brown dwarfs. Recommended r...
Senior mind and brain editor Gary Stix has covered the breadth of science and technology over the past 35 years at Scientific American. He joins host Rachel Feltman to take us through the rise of the Internet and the acceleration of advancement in neuroscience that he’s covered throughout his time here. Stix retired earlier this month, and we’d like to thank him for his intellect, inquisitiveness and inspiring run at Scientific American! Read some of Gary Stix’s recent coverage of neuroscience a...
Hypochlorous acid is a promising disinfectant that is difficult to commercialize because it is not very shelf-stable. Senior features editor Jen Schwartz takes us through what the science of this nontoxic disinfectant is and explains why its popularity in the beauty aisle is only the beginning. Recommended reading: The Nontoxic Cleaner That Kills Germs Better Than Bleach—And You Can Use It on Your Skin https://www.scientificamerican.com/article/hypochlorous-acid-is-trending-in-skin-care-and-clea...
Caffeine-motivated researchers find that pour height may be the key to a perfect cup of coffee. A new study of plastics finds that less than 10 percent of such products are made with recycled materials. And once the plastics are used, only 28 percent of them make it to the sorting stage—and only half of that plastic is actually recycled. Data from the Hubble Telescope show how a day on Uranus lasts longer than previously thought. Plus, we discuss how scientists thought dinosaurs were in decline ...
Noninvasive prenatal blood testing, or NIPT, is a routine screening that is offered during pregnancy and looks for placental DNA to diagnose chromosomal disorders in a fetus. But in some cases, these tests can also find cancer in the pregnant person. How do the tests work, and why are they uncovering cancer? Genetic counselor and writer Laura Herscher speaks with host Rachel Feltman about IDENTIFY (Incidental Detection of Maternal Neoplasia through Non-invasive Cell-Free DNA Analysis), a broader...
Bacterial vaginosis (BV), an overgrowth of pathogenic bacteria in the vagina, affects nearly one in three people with a vagina. While you can get BV without ever having sex, a new study has found that, in some cases, it could be functioning more like a sexually transmitted infection. That’s in part because of the increased risk of BV after sex with a new partner and a high recurrence of BV symptoms after treatment.The study examined women with BV who were in a monogamous relationship with a male...
We're surrounded by risks of all sizes, every day. Some people might be risk-takers, while others do whatever they can to avoid them. But how can we tackle the risks that impact society on a global scale, like those linked to sustainable energy, societal health and digital technology? Science journalist Izzie Clarke explores this question in the latest podcast from Scientific American Custom Media. She sat down with Chris Cramer, chief research officer and interim president for the leading safet...
The Trump administration continues to make cuts to U.S. science and health agencies. Now some states are fighting back, suing the Department of Health and Human Services for slashing $11 billion in public health funds. A study finds that Americans live shorter lives than Europeans with the same income—stress and other systemic issues could be to blame. While much-hyped asteroid 2024 YR4 is no longer a risk to Earth, it could still hit the moon—a possibility that has some scientists excited. Plus...
The U.S. Department of State recently announced plans to dismantle the U.S. Agency for International Development, or USAID. While some of USAID’s functions will continue under the Department of State, there is real concern that the cuts will jeopardize public health efforts across the world, including immunization programs and other efforts that have saved the lives of millions of children. Senior health and medicine editor Tanya Lewis joins host Rachel Feltman to explore the agency’s lifesaving...
The human body is capable of some truly incredible things. One of the most mysterious and debated phenomena is a release of fluid during sex that is often referred to as “squirting.” What’s actually happening, and why does it stir so much speculation? Wendy Zukerman, host of the hit podcast Science Vs, breaks down the science behind this fascinating topic, exploring what we know, what we don’t and what the controversy surrounding it is. Recommended reading: What a Survey On Anal Sex and Masturba...
Long-chain alkanes discovered by NASA’s Curiosity rover point to the possibility that there may have been fatty acids on Mars—and that they could have come from past microbial life. Paleontologists have found a huge dinosaur claw that was probably made for foraging, not fighting. Researchers studying ocean life have recorded the sounds of sharks and the tricks of cuttlefish. Plus, cuts to jobs and funding for U.S. federal science and health agencies continued last week. Tens of thousands of fede...
The cutting edge of research is very small—and very clean. In this episode, host Rachel Feltman joins Vladimir Bulović, director of MIT.nano, on a tour of this facility’s nanoscale capabilities. Its tightly controlled clean room hosts research across several fields, from microelectronics to medical nanotechnology. You can see Bulović’s tour of the lab at: https://youtu.be/ucGFcLjX30Q E-mail us at [email protected] if you have any questions, comments or ideas for stories we should cover! D...
When you hear “invasive plant,” you might picture an aggressive species taking over and harming the environment. But what if the way we think about invasive plants is part of the problem? Host Rachel Feltman chats with Mason Heberling, associate curator of botany at the Carnegie Museum of Natural History, about why these plants are more complicated than we think. He’s one of the experts behind Uprooted: Plants Out of Place, a new exhibition that challenges the way we label and manage plant invas...
Two NASA astronauts are finally back on Earth after an unexpected nine-month stay in space. What kept them up there so long? Meanwhile scientists have discovered that gray seals have a built-in oxygen gauge that helps them hold their breath for more than an hour. And in the Antarctic, researchers found that penguin poop seriously stresses out krill. Catch up on these stories and more in our Monday news roundup. Recommended reading: After 286 Days in Space, NASA Astronauts Return to Earth with a ...
What if you could completely separate your work and personal life—with the help of a brain implant? That’s the unsettling premise of Severance, the hit Apple TV+ show that just wrapped its second season. To make the science fiction feel as real as possible, the creators brought in an actual neurosurgeon, Vijay Agarwal, chief of the Skull-Base Tumor Center at Montefiore Einstein, as a consultant for the show. Host Rachel Feltman met with Agarwal to break down the real neuroscience behind Severanc...
Colonoscopy gets a bad rap, but how much of what you’ve heard is actually true? In recognition of Colorectal Cancer Awareness Month, we’re tackling the biggest myths that keep people from getting this potentially lifesaving screening. John Nathanson, a gastroenterologist at Columbia University Irving Medical Center, joins host Rachel Feltman to clear up what the misconceptions are, explain what to expect and share why this test is so important. Recommended reading: The Colon Cancer Conundrum Col...
The new Environmental Protection Agency administrator plans to get rid of or weaken critical environmental rules and policies, such as regulations around greenhouse gases and clean water protections. The deregulation effort follows the recent cancellation of hundreds of grants. NASA launched two missions last week. The first, SPHEREx, will make a three-dimensional map of the sky. The second, PUNCH, is a collection of satellites meant to study solar wind. Plus, Saturn gains some moons, and whale ...
Dennis Hong, a mechanical and aerospace engineering professor at the University of California, Los Angeles, discovered a love of robots at an early age while watching the “droid” characters in Star Wars. As director of the Robotics and Mechanisms Laboratory at U.C.L.A., Hong has worked on functional humanoid robots for tasks such as firefighting and disaster relief. Then the Russo brothers came calling. To promote their new Netflix movie The Electric State, film directors Anthony and Joseph Russ...
It’s been five years since COVID was declared a global pandemic. Local, national and global public health agencies mobilized to contain the spread of COVID, but experts worry that backlash against measures like lockdowns have made today’s systems less capable of handling a disease of similar scale. Now the U.S. faces a tuberculosis outbreak in Kansas that underscores the importance of public health infrastructure. Recommended reading: On COVID’s Fifth Anniversary, Scientists Reflect on Mistakes ...
This episode covers measles misinformation and vitamin A, a Supreme Court ruling impacting the EPA's authority over water pollution, positive news regarding ozone layer recovery due to the Montreal Protocol, advances in cartilage repair, and the creation of genetically engineered woolly mice, a step toward de-extinction research.
John Green is an author, advocate and one half of the Vlogbrothers. His latest book, Everything Is Tuberculosis, comes out on March 18. Green joins host Rachel Feltman to share how tuberculosis shaped history, geography and culture. He discusses how he came to understand the inequities of tuberculosis and the dire risk public health interruptions pose to patients today. Recommended reading: You can preorder Everything Is Tuberculosis: https://everythingistb.com/#book How Advocates Pushed Big Pha...
Not much passes into our brain from the rest of our body, to the chagrin of drug makers everywhere. So it should be cause for concern when a study found that microplastics were somehow ending up in our brain, says chief opinion editor Megha Satyanarayana. She takes a step back and brings us into the wider world of plastics and the way petroleum chemicals can become pollutants far beyond the factories where they are made. Plus, Satyanarayana discusses the Scientific American opinion section and h...
