On Today's Podcast
Why are we changing the way we keep time?
Timekeeping scientists around the world voted to stop using leap seconds, but what does this mean for us?
Listen NowOctober 23, 2026
CRISPR pioneer Jennifer Doudna discusses the evolution of gene-editing technology and what it takes to be a good scientist. Timekeepers around the world voted to stop using leap seconds, but what does that mean for us? Plus, how "problem bears" help test engineers evaluate consumer products, author Kazuo Ishiguro on emotional truth in our age of AI, and the science of apple varieties.
Comet’s Tail Shines Light on Sun
In 2011, comet Lovejoy traveled through the sun’s corona and lived to tell the tale. But its tail was the most telling.
Surviving the End of the World (As We Know It)
Another mass extinction on earth is inevitable. So let’s get on with life.
Out of This World
Space artist Dan Durda forges into the unknown to create celestial scenery that educates and inspires.
Horseshoe Crab Bandits, Quick Whiskey, Milky Way Map, and More
A roundup of science stories or studies that blow our mind, tickle our funny bone, or generally strike our fancy.
A Sculpture Eavesdrops Underwater
A submerged piece of art will grow into an artificial reef while recording surrounding marine sounds.
8:40
With Chemical Tweaks, Cement Becomes a Semiconductor
Researchers explain how a cement can take on some of the properties of a metal.
34:35
Bad Diagnosis for New Psychiatry “Bible”
Many experts say the DSM’s approach to mental illness is outdated, and it’s time to move on.
3:19
Teacher Feature: Ethnobotanist Tom Carlson
A student tells his former professor how much a class meant to him.
12:08
Researchers Revive a Plant Frozen in Time
A plant called a bryophyte survived 400 years frozen beneath glacier ice.
34:45
The SciFri Book Club Takes a Hike
Bill Bryson’s “A Walk in the Woods” is this month’s book club read.
Teacher Feature: Ethnobotanist Tom Carlson
Science Friday pays tribute to a great science teacher. “Office hours are some of my favorite hours of the week,” says Tom Carlson, a medical doctor, ethnobotanist, and instructor of 1700 students annually at the University of California, Berkeley.
SciFri’s Summer Reading List, 2013
The 15 titles on our list are just the tip of the science writing iceberg.
Mine-detecting Honeybees, Deciphering Teenage Sounds, and More
A roundup of science stories or studies that blow our mind, tickle our funny bone, or generally strike our fancy.
11:54
Having a Dog May Mean Having Extra Microbes
Houses with dogs had more types of bacteria, say researchers who surveyed surfaces in 40 homes.
26:14
Tackling New Tech in the Golden Years
How, and why, have some older people overcome the challenges of learning new technology?
7:48
Tracking Killer Tornadoes
The massive tornado that struck Oklahoma this week was the product of specific atmospheric conditions—and bad luck.
12:19
Studies Question Potential Alzheimer’s Treatment
A skin cancer drug shown to lessen Alzheimer’s symptoms in mice may not work as originally claimed.
27:28
Reinventing Farming for a Changing Climate
Climate change may increase pests and turn dry soil to dust. Farmers are already on the offensive.
6:51
‘Crazy Ants’ Spreading in the Southeastern U.S.
Tawny crazy ants, recent arrivals to the country, are able to drive out even the imported fire ant.