On Today's Podcast
Why Astronomers Are Excited About Comet 3I/ATLAS’ Close Approach
Comet 3I/Atlas is just the third known object to visit us from outside our solar system. So yes... we'll be talking about aliens.
Listen NowDecember 19, 2025
A newly identified amoeba can survive at the temperature of a medium-well steak. Plus, a distant lava planet shows signs of an atmosphere. And, this Christmas Bird Count, we salute the fabulous, underappreciated, common species. Here’s to you, house sparrow.
4:26
I Am Not A Robot. Or Am I?
A new computer model can learn and generalize visual information more efficiently. But it could render CAPTCHA tests obsolete.
17:34
A Mortician’s Search For ‘The Good Death’
Caitlin Doughty traveled the world to document how different cultures deal with their dead. Now, she challenges us to develop a better relationship with mortality.
From The Flame To Eternity
Author Caitlin Doughty recounts the spiritual and “transformative” ceremony of a funeral pyre in a Colorado town.
12:04
It’s A Bee! It’s A Dragonfly! It’s A Robot!
A new insect-like robot can take off using—and from under—water.
If A Robot Offers You A Cookie…
Authors Zach and Kelly Weinersmith examine the evolving nature of human-robot interactions.
17:27
Is It Time For CRISPR 2.0?
Scientists expand the gene editing functions of CRISPR, making it safer and more precise.
17:18
The Future, Coming ‘Soonish’
From space elevators to brain-computer interfaces, Kelly and Zach Weinersmith ponder the good, bad, and “maybes” of emerging technologies.
17:33
In Defense Of Spiders
Two scientists want you to stop worrying and love spiders.
The Marvelous, Misunderstood Lives Of Common Spiders
These eight-legged crawlers have an unnecessarily bad rap.
Six Bestselling Authors Share Their Favorite ‘Other Worlds’
Kim Stanley Robinson, Andy Weir, and more share some of their favorites.
Science Friday Live In Louisville
From raining diamonds in space to the chemistry behind the perfect glass of bourbon, SciFri pours one on the rocks.
8:05
As Legal Pot Proliferates, How Do We Test For Impairment?
Plus, the secret to cows that produce less methane may be genetic.
4:04
Can The Latest Wi-Fi Security Bug Be Patched?
Researchers have exposed a bug in WPA2, the standard protocol used to secure all modern Wi-Fi networks.
17:19
A Stellar Collision, Ripples In Space-Time, And The Origins Of Gold
Astronomers have detected signals produced by two neutron stars that collided millions of years ago.
11:58
The Health Risks That Follow A Wildfire
The recent Northern California wildfires have burned entire neighborhoods—a look at the potential health hazards of the resulting smoke and debris.
17:00
What Happens When Your Unconscious Mind Is In Charge
A new book explains how hidden influences affect our behavior and feelings towards others.
16:44
Science Goes To The Movies: Blade Runner 2049
Could we build … or grow … replicants in the near future?
Your Brain Is A DJ Playing Three Songs At Once
Psychologist John Bargh explains how the field of psychology is trying to make up for missed time after centuries of being overlooked.
16:28
Leonardo da Vinci, Master Of Art And Science
Author Walter Isaacson investigates how Leonardo da Vinci combined the arts and sciences to create masterpieces.
The Eyes And The Smile Of Mona Lisa
Walter Isaacson explains how Leonardo da Vinci achieved some of the Mona Lisa’s mysteries.