Audio
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May 2, 2025
An astronomer explores the cosmos and the limits of what science can test. Plus, how the mysterious properties of pasta—like how it bends, coils, and breaks—have been tested by physicists for decades. And, millions of years ago, iguanas somehow got from North America to Fiji. Scientists think they made the trip on a raft of fallen vegetation.
16:36
With Her Kids’ Help, Jean Craighead George’s ‘Ice Whale’ Sees Print
The final novel from “My Side of the Mountain” author Jean Craighead George takes children underneath the Arctic Ocean.
17:29
Reawakening Limbs After Years of Paralysis
Paraplegics were able to stand and move their legs again with the help of a spinal implant.
11:32
Scientists Study Vole Romance Under the Influence
To learn how alcohol affects relationships, scientists mix prairie voles a drink.
16:38
Up Close With the Lunar Eclipse
The lunar eclipse on Tuesday, April 15, will be visible from all over North and South America.
12:13
Bill Nye Stops By
Bill Nye stops by to chat about teaching science, launching solar sails into space, and more.
17:17
Busting Bad Bacteria With Their Viral Enemies
Phages added to packaged beef or spinach could cut down on E. coli bacteria outbreaks.
34:47
The Origins of Violence
An anthropologist, a psychologist, and a crime writer ask: Are humans hard-wired for violence?
11:59
Diving Into the Underground Ocean of One of Saturn’s Moons
Enceladus, one of Saturn’s moons, may have an underground ocean the size of Lake Superior.
6:30
Inside Insight: Clearing and Staining Fish
Clearing and staining gobies, stingrays, and sharks has revealed to scientist Adam Summers critical data, as well as the beauty of each fish’s unique form.
27:16
Roger Penrose: Cosmic Inflation Is ‘Fantasy’
What’s wrong with modern physics—and could alternative theories explain our observations of the universe?