Nov 21

The Hidden Worlds of ‘Nanocosmos’

In his new book, Nanocosmos: Journeys in Electron Space, artist and writer Michael Benson transforms scientific imaging into art, capturing intricate natural designs that inspire awe and wonder. Join host Kendra Pierre-Louis as they explore how science and creativity intersect at ... Show More

24m 20s

Nov 19

Gut Health Tips for the Holidays

Holiday meals can delight our taste buds while the food puts real strain on our digestion. Host Kendra Pierre-Louis talks with Northwestern University gastroenterology expert Kathryn Tomasino about why digestion is influenced not just by diet but also by stress, sleep and mindful ... Show More

16m 57s

Nov 17

The Digital Time Capsule That Survived Two Decades

Our editor in chief David M. Ewalt revisits a remarkable 20-year experiment: an e-mail time capsule designed to deliver digital messages from the past into the future. What began as a tech project at Forbes evolved into a story of human connection—proving that sometimes it’s frie ... Show More

14m 5s

Jul 2025

Greenland’s Ice Sheet Is at Risk—And So Are We

Chief multimedia editor Jeffery DelViscio ventured to Greenland for a month to learn from the scientists studying the country’s ice sheet. He speaks with host Rachel Feltman about his time in the field and his takeaways from conversations with climate scientists. This story was s ... Show More

22m 5s

Feb 2025

Exploring the Hidden Life in the Air around Us with Carl Zimmer

Scientists now agree that COVID spreads via airborne transmission. But during the early days of the disease, public health officials suggested that it mainly did so via close contact. The subsequent back-and-forth over how COVID spread brought science journalist Carl Zimmer into ... Show More

16m 47s

Jul 2025

Summer Meteor Showers, Short Summer Days and Ancient Arthropods

If last Tuesday seemed to fly by, you can blame the rotation of Earth. Try to look up this week to see the Southern Delta Aquariids and the Alpha Capricornids meteor showers. Plus, we discuss FEMA cuts and ancient arthropods. Recommended reading: Texas Failed to Spend Millions in ... Show More

8m 49s

Jan 2025

Combatting Climate Anxiety through Community Science

It’s easy to feel overwhelmed with the news these days and to fear for the future. What if you could interrupt doomscrolling and contribute to conservation at the same time? That’s the idea behind programs like Adventure Scientists, eBird and iNaturalist. Guest Gregg Treinish, fo ... Show More

14m 34s

Jul 2025

Time Travel to Tide Pool 101 from Our July 1925 Issue

Time travel to an introduction to tide pools, the start of commercial air travel and an intercontinental aviation museum dispute. Host Rachel Feltman is taking a look at a 1925 issue of Scientific American for this archival episode. If you don’t find the past to be a blast, don’t ... Show More

8m 57s

Sep 15

Kissing Bugs, Koalas and Clues to Life on Mars

A paper published by the Centers for Disease Control and Prevention argues that Chagas disease is now endemic in the U.S. Koalas may finally be spared from a deadly epidemic. Meanwhile NASA’s Perseverance Mars rover has uncovered tantalizing clues about potential ancient microbia ... Show More

9m 37s

Oct 8

Chris Hadfield’s Fictional Universe Is Rooted in Real Space History

What happens when a real-life astronaut turns to fiction? In this episode, Chris Hadfield shares how decades of spaceflight and global diplomacy inspired his latest novel, Final Orbit, a cold war thriller packed with historical intrigue and technical precision. Host Rachel Feltma ... Show More

10m 52s

Aug 25

Science’s Greatest 180s

Science doesn’t always get it right the first time—and that’s part of the journey. In this anniversary episode, we explore how ideas about nerve damage, sustainable materials and alien life have done a full 180. Recommended Reading Celebrating 180 Years of Scientific American 180 ... Show More

8m 4s

Aug 29

Katrina Was Predicted: Revisiting Warning Signs 20 Years Later

Twenty years after Hurricane Katrina devastated New Orleans, Scientific American revisits the storm’s tragic legacy and the scientific warnings that went unheeded. Senior editor Mark Fischetti shares his experience reporting on the city’s vulnerability years before the levees bro ... Show More

23m 24s

Aug 18

Chikungunya Outbreak, Glacial Outbursts and a New Human Ancestor

The chikungunya virus is rapidly spreading in China. Could it make its way to the U.S.? Meanwhile in Alaska a glacial lake outburst flooded the nearby Mendenhall River to record levels. And in Ethiopia fossilized teeth reveal a new species of Australopithecus—one that possibly li ... Show More

10m 50s

Greenland’s Ice Sheet Is at Risk—And So ...