On Today's Podcast
That chlorine smell at the pool? It’s pee
The chlorine in swimming pools reacts with our urine and sweat, producing volatile chemicals that are potentially harmful to breathe.
Listen NowJune 26, 2026
The chlorine in swimming pools reacts with our urine and sweat, producing volatile chemicals that are potentially harmful to breathe. A new pancreatic cancer drug doubles survival times. Plus, as NASA prepares for long-term moon bases, scientists are working on how to grow food in lunar soil and deal with razor-sharp moon dust. And, how different types of laughter originate in the brain.
A Vaginal Ecologist’s Crusade Against HIV in Women
Sharon Hillier is using her expertise in women’s nether regions to bring an HIV-prevention drug—targeting females—to market.
17:25
Putting Scientific Research to the Test
Out of 100 psychology studies, researchers were able to reproduce the original results in less than half.
6:38
From Hawking, a New View of Black Holes
At a recent scientific meeting, physicist Stephen Hawking outlined a possible solution to a paradox about information in a black hole.
10:05
Birds To Spot In Your Yard This Fall
Autumn is a good time to observe birds changing their plumage and behavior, and an opportunity to spot birds commuting south from their Arctic summer homes.
11:57
Can Rooftop Solar and Utilities Get Along?
Rooftop solar is booming. But as more homegrown energy comes online, utilities foresee an economic squeeze—which is leading to nasty fights over the future of utilities and the grid.
9:01
LEDs Could Light the Way to Future Networking
Engineers are researching how LEDs could help with the broadband “capacity crunch.”
25:23
The SciFri Book Club Talks ‘The Soul of a New Machine’
After three weeks of reading, the SciFri Book Club regroups to discuss Tracy Kidder’s 1981 true-tech tale, “The Soul of a New Machine.”
11:48
Urban Ecosystems, Turing Nanopatterns, and Serving Sizes
Brandon Keim, a freelance science reporter, shares this week’s top science news.
Write Your Name In Binary Code
Want to write like a computer? Here’s your chance to get started.
An Origami Bunny, Made From DNA
Researchers have developed a method to build tiny structures out of DNA based on 3-D polygonal shapes created with a computer.
11:44
Crowdsourcing Planetary Names, Female ‘Viagra,’ and a Vomit Machine
BuzzFeed News science editor Virginia Hughes shares her top stories from this week in science, and Scientific American editor Lee Billings discusses crowdsourced planetary names.
24:26
Employee or Datapoint?
The data employers are gathering on their employees aren’t always a fair measure of efficiency or success, and in some cases, it’s an invasion of privacy.
8:38
How To Be A Garden Whiz
Could urine be the gold standard when it comes to fertilizing your garden?
11:57
Do You Understand the Richter Scale?
Seismologist Lucy Jones explains what earthquake magnitude means and why we should measure earthquakes differently.
17:27
Museum Plays Art and Technology Matchmaker
LACMA’s Art & Technology program brings together artists and tech companies to see what the two can create together.
A Corpse Flower Blooms in Denver
The putrid odor of a large tropical plant has begun wafting through the Denver Botanic Gardens—and visitors are lining up to inhale deeply.
Does Sound Affect the Way We Taste?
Research suggests that sound is the “forgotten sense” when it comes to how we perceive flavors.
11:58
El Niño Vs. the Blob, Yeast Painkillers, and a Butter Bummer
This week’s news roundup takes us to San Francisco, where Ira is joined by KQED science and environment reporter Lauren Sommer.
