On Today's Podcast
What do people eat? Plant and animal DNA in sewage provide clues
DNA signatures of plant and animal species remain behind even after they’ve been eaten, digested, excreted, and flushed down the toilet.
Listen NowJuly 31, 2026
A new book tells the story of Black women cryptologists who deciphered Soviet telegrams intercepted during the early days of the Cold War. Plus, a pioneer of cancer neuroscience explains how brain cancer develops, the role of the nervous system, and what might lead to new treatments. And, extreme heat is hitting India hard. One physician is trying to understand the health impacts, and help Indians prepare for future heat waves.
Pigeons Are More Than Rats With Wings
Read an excerpt of Pocket Guide to Pigeon Watching: Getting to Know the World’s Most Misunderstood Bird by Rosemary Mosco.
Bring Your Brainy Buds To SciFri Trivia Night At Caveat NYC!
On Wednesday, February 23, join us at Caveat as SciFri Trivia Night returns to NYC.
12:16
A Replacement Heart, From A Pig
Doctors report transplanting a heart from a genetically-modified pig into a human.
9:33
Ivermectin’s False Reputation Exemplifies How Misinformation Spread
The unproven drug lacks scientific backing—and even the studies that purportedly found it effective have been disputed and retracted.
7:35
A Massive New Find Of Icefish Found Near Antarctic
The unusual family of fish have antifreeze in their veins and see-through skulls—and there’s way more of them than anyone realized.
27:41
A Debate Over How The Universe Began
While debating the origins of the universe, these mid-century researchers accidentally explained the origins of every element of matter.
2:00
The World According To Sound: Listening To Black Holes Collide
Some black holes sound like a wobbling top, while others rumble in low bass tones. Listen to them yourself, thanks to MIT professor Scott Hughes.
16:43
Is There A Method To Plant Mutation?
New research finds that some parts of plant genomes mutate more often—suggesting it may be time to rethink the randomness of evolution.
17:05
Omicron Sparks Surge In Pediatric Hospitalizations
Two pediatric infectious disease specialists answer listener questions about what’s behind the rise in omicron cases in kids.
The Debate That Sparked The Big Bang
How a 1940s horror movie inspired maverick physicist Fred Hoyle’s now-panned alternative to the Big Bang.
11:48
Omicron Variant Drives Winter COVID Surge
Everything you need to know about tests, revised quarantine guidelines, and forthcoming vaccines.
17:00
How Christmas Bird Counts Help Shape Science
Long-ranging records are helping track changing bird patterns.
12:14
How A Former Microsoft Exec Mastered The Perfect Slice—Using Science
Nathan Mhyrvold, author of “Modernist Pizza,” made over 12,000 pies to investigate the physics and chemistry of the perfect slice.
17:24
E.O. Wilson’s Indelible Mark On Ecology
Reflecting on the late naturalist’s extensive legacy.
17:32
The Fossil—And Family—Records Of Richard Leakey
A leading authority on paleoanthropology, Richard Leakey leaves behind an expansive body of work on human evolution.
17:17
Omicron May Be Less Severe. It’s Still A Big Healthcare Problem.
A breakdown of what to consider when talking about severity.
11:58
Glitter Gets An Eco-Friendly Glimmer
Chemists have developed a new way to make eco-friendly glitter from plant fibers.
25:39
Chilling Out With Unusual Ice
From pancake to frazil ice, an oceanographer shares insights into the Earth’s poles.
3:44
The Curious Case Of The Unmeltable Ice Cube
A non-melting ‘jelly ice’ cube could improve packaging and cold storage.
17:37
Francis Collins, Longest-Running NIH Director, To Step Down
An acclaimed geneticist who helped map the human genome, Dr. Francis Collins reflects on his long tenure at the NIH.