On Today's Podcast
What we get wrong about vaccine hesitancy
An immunologist who's been on both sides of vaccine hesitancy talks about what drives it, what gets missed, and how to build trust.
Listen NowAugust 14, 2026
At the peak of linguistic diversity, humans may have spoken up to 10 times as many languages as we do today. An immunologist who’s been on both sides of vaccine hesitancy talks about what drives it, what gets missed, and how to build trust. Plus, a new journal documents species “lost to science,” and a conservation project aims to locate lost firefly species in the U.S. and Canada.
16:16
Trash Talk: Uncovering the Waste in U.S. Landfills
American landfills may be crowded with twice as much waste as previously thought, according to a new study.
Agatha Christie: From Pharmacist’s Apprentice to Poison Expert
An excerpt from “A Is for Arsenic: The Poisons of Agatha Christie.”
12:18
Arctic Mosquito Swarms, Our Shrinking Moon, and a ‘Dislike’ Button
Rachel Feltman of “The Washington Post” joins us for a roundup of her top science stories this week.
24:17
A Science Hero, Lost and Found
In “The Invention of Nature,” historian Andrea Wulf restores forgotten explorer and scientist Alexander von Humboldt to his rightful place in science history.
9:33
Keeping an Eye on Our Celestial Companion
Dean Regas, outreach astronomer at the Cincinnati Observatory and co-host of the PBS series “Star Gazers,” shares moon-viewing tips and a dose of lunar lore.
11:59
Mapping Out Neutrino Hotspots Here on Earth
Neutrinos form on our own planet and can be used to probe the deepest parts of the earth.
16:54
Unlocking Parkinson’s Disease
Science journalist Jon Palfreman shares his own journey with Parkinson’s disease and new treatments for patients.
17:07
Is Deep-Sea Exploration Worth It?
Sylvia Earle and other researchers discuss how humans fit into the future of deep sea exploration.
From Shaking Palsy to Parkinson’s: Defining a Neurodegenerative Disease
An excerpt from “Brain Storms: The Race to Unlock the Mysteries of Parkinson’s Disease.”
From Atop an Ecuadorian Peak, an Epiphany About Nature
An excerpt from “The Invention of Nature: Alexander von Humboldt’s New World.”
Go Out And Observe the Moon!
Observe the moon each day for one month, map the moon’s features, simulate lunar impacts, and explore lunar science in this resource from NASA’s International Observe the Moon Night (InOMN), an annual worldwide celebration of lunar science and exploration.
12:29
Testing Ocean DNA, Americans Pass a Science Quiz, and Polar Bear Diets
KQED’s Lauren Sommer talks testing ocean DNA and other science news stories from this week.
24:14
The Science Of Story Time
Studies have shown that talking with your child promotes literacy. Now a new study in “Psychological Science” suggests reading to them may give them an even bigger edge.
9:01
Does Air Pollution Deflate Urban Bikers’ Health?
A new study is mapping how much air pollution city bikers encounter on their daily routes.
29:53
Meet Homo Naledi, Another Long-Lost Relative
Deep in a South African cave, in the so-called “dark zone” where no light penetrates, paleoanthropologists have made an extraordinary find: more than 1,500 bones, from at least 15 hominin individuals.
16:43
Science and Diplomacy
What role can science and scientists play in negotiating global issues?
Pedaling Through Pollution
Using biometric sensors, a wearable pollution monitor, and GPS, the a new study will detail cyclists’ exposure to toxins as they bike through city streets.
11:49
Arctic Climate Change, Pot Pesticides, and Student Data
Brooke Borel, from “Popular Science,” shares her top stories from this week in science, and “New York Times” reporter Natasha Singer debates the pros and cons of collecting student data.
4:39
Macroscope Video: A Cure for the Colorblindness Blues
Using gene therapy, visionary researchers Maureen and Jay Neitz may have finally created a cure for the colorblindness blues.
28:56
A Tribute to Oliver Sacks
Neurologist, writer, motorcycle racer, weightlifter, swimmer, and enthusiast of ferns, cycads, cephalopods and minerals—Oliver Sacks was a modern day Renaissance man.