Yesterday

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

Oct 6

Enceladus’s Alien Ocean, Ancient Fungi and the Flavor of Influenza

Saturn’s moon Enceladus reveals complex organic molecules that could hint at extraterrestrial life. Researchers also uncover fungi’s ancient reign over Earth and warn that second COVID infections may pose greater risks to young people. Plus, ants ferment yogurt, and flu detection ... Show More

9m 47s

Oct 3

Enter One of the World’s Quietest Rooms

Inside one of the quietest rooms in the world, host Rachel Feltman meets artist-in-residence Seth Cluett at the historic anechoic chamber at Bell Labs to explore the science of silence and sound perception. From popping balloons in total silence to hearing your own nervous system ... Show More

20m 5s

Jul 25

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 2024

On Thin Ice: Contemplating Our Climate Future in Antarctica (Part 4)

We’re at the end of the Nathaniel B. Palmer’s Antarctic expedition. The researchers onboard are returning sea ice and thousands of gallons of seawater. These samples will allow them to examine biogeochemical processes, some of which are linked to climate change. As the research v ... Show More

17m 40s

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

Nov 2024

Reflecting on our First Attempt to Speak with the Stars

Tomorrow marks the 50th anniversary of a transmission from the Arecibo Observatory, intended as our first attempt to send a message to intelligent life across the universe. Journalist Nadia Drake talks about the careful crafting of the signal and her personal connection with the ... Show More

15m 20s

Apr 2025

From the Internet’s Beginnings to Our Understanding of Consciousness, This Editor Has Seen It All

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 t ... Show More

20m 15s

Feb 2025

Valentine’s Day Isn’t Just for Romance—The Science of Deep Friendships

Love isn’t just about romance. This Valentine’s Day, we’re exploring the power of deep nonromantic bonds. Host Rachel Feltman sits down with Rhaina Cohen, a producer and editor for NPR’s podcast Embedded and author of The Other Significant Others, to discuss the history and psych ... Show More

17m 2s

Aug 27

Ice Sheet Time Machine

The US military carved a tiny city into the Greenland ice sheet. What they found, and lost, and found again, and what it tells us about climate change. Guests: Paul Bierman, geoscientist at the University of Vermont and author of When The Ice Is Gone; Richard Alley, geoscientist ... Show More

31m 40s

Apr 2025

The Age of Aquaticus

For years, scientists thought nothing could live above 73℃/163℉. At that temperature, everything boiled to death. But scientists Tom Brock and Hudson Freeze weren’t convinced. What began as their simple quest to trawl for life in some of the hottest natural springs on Earth would ... Show More

43 m

Feb 2025

Saying Farewell to the Spacecraft That Mapped the Milky Way

The Gaia spacecraft stopped collecting data this January after about 11 years and more than three trillion observations. Senior space and physics editor Lee Billings joins host Rachel Feltman to review Gaia’s Milky Way–mapping mission and the tidal streams, black holes and astero ... Show More

17m 20s

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