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.
7:07
A New Astronaut Class Begins The Journey To The Stars
Plus, the health effects of your bread choices, wolves’ sense of equality, and more news from the week in science.
4:42
Finding An Earthly Home For The Thirty Meter Telescope
The instrument’s original site plans set off a controversy. Another site is available, but relocation won’t be easy.
9:18
Is Your Sunscreen Living Up To Its Promise?
A new report says only one quarter of SPF products on the market are up to snuff.
7:50
The Sunscreen Of The Future
A customizable melanin-like material could offer better protection from the sun.
11:54
Can You Hold An Algorithm Accountable?
Regulating algorithms could offer better insight into why they fail.
17:10
The Road To CRISPR
Biochemist Jennifer Doudna describes her work on developing the CRISPR-Cas9 technique and the ethical concerns of using the revolutionary tool.
10:03
Weighing A Star With Gravity: Einstein’s ‘Impossible’ Experiment
A century ago, we used general relativity to weigh the sun. A research team has finally done the same for a star outside our solar system.
6:05
The Hottest Known Exoplanet Is (Probably) Slowly Melting Away
Researchers find a doomed planet orbiting a massive hot star.
16:20
Fossil Finds Could Mean A Wider ‘Cradle Of Humanity’
Hominin fossils dating to 300,000 years ago have been found at a site in Morocco.
The Wisdom Of Teeth
Hidden inside each set of ancient teeth are clues about their owner’s behavior, ancestry and hints about what really made up the paleo diet.
Are You A Young Inventor? File A Patent
Tips and advice on how young inventors can protect their intellectual property.
Rising Seas Are Washing Away Graves In The Marshall Islands
For the residents of this island nation, climate change is already here.
7:44
Trump Pulls US From Climate Agreement
President Trump pulled the U.S. from the Paris Climate Agreement, plus CRISPR human trials, a NASA sun orbiter, and more.
4:13
Winners And Losers In Warming Northeast Waters
Climate change can create more habitat for some species of fish. But will fisheries adapt?
22:44
Spreading The Word About The ‘Mother Of Wi-Fi’
Actress Hedy Lamarr was so much more than a beautiful face. Here’s why her story needs to be told.
29:40
Why Are Allergies So Dang Hard To Get Rid Of?
A look at why our immune systems turn on us, and why we’re still powerless to stop the attack.
8:25
Bringing Sensation To Bionic Limbs
An innovative muscle graft could help people with amputations “feel” their bionic limbs.
9:04
Need A Boost? Try An Exosuit
Researchers are developing wearable devices that can make human movements more efficient, boost strength, and increase endurance.
10:12
LIGO Scientists Detect Another Cosmic Collision
Scientists using LIGO detected a third gravitational wave, this time from two colliding black holes located 3 billion light-years away.
What Happens If The US Leaves The Paris Climate Deal?
One way is fast and dramatic. The other is slower and leaves wiggle room.