February 7, 2025
Some research shows that e-cigarettes can be a useful tool for quitting cigarettes, but that strategy is hotly contested by scientists. Plus, an investigative journalist outlines how fraud and misconduct have stalled the search for effective Alzheimer’s treatments in a new book. And, why snow has that crisp, clean smell.
00:17:03
The Spicy Science of Chili Peppers
What gives the hot habanero and mild jalapeño their “heat profile”?
00:12:02
Our Bodies May Fight Infection Better by Day
Mice appear to be more susceptible to viral infection during their sleep cycle, suggesting that circadian rhythms can affect our immune systems.
16:46
A Fast-Paced Thriller That’s a Tour Through the Multiverse
In “Dark Matter,” Blake Crouch crafts a thriller based on physics’ spookiest phenomena.
8:10
The Race to Build a Smaller Rocket
Rocket entrepreneurs are in competition to be the Uber for small satellites.
8:22
What Makes the Solar System Like a Crime Scene?
An icy space object with a rebellious orbit may be a clue to the mystery of the early solar system.
00:17:16
I, Twitter Bot
The weird, beautiful, and helpful world of automated Twitter accounts.
4:01
What Will More Research-Grade Marijuana Mean for Medical Studies?
The Drug Enforcement Administration has expanded the number of marijuana manufacturers that can grow and provide the drug to medical researchers.
A Portal to the Multiverse
Author Blake Crouch tells the story of a man who invents a machine that can access multiple realities.
Chili Peppers
A look at where chili peppers’ signature heat comes from. Plus, which is the hottest of them all?
The Agony And Ecstasy Of Capsaicin
Marco Tizzano explains how capsaicin creates a chemical cascade inside your body and why emotions might make chili lovers think they can handle the heat.
Four Ways ‘Oryx and Crake’ Predicted the Future
Margaret Atwood’s book is fiction, but the cutting-edge research she writes about is real.
The Hottest Pepper in the World
Consuming the Carolina Reaper is “kind of like eating molten lava.”
Do Other Animals Show Handedness?
Humans aren’t the only species where righties outnumber lefties.
Birding as a Gateway to Environmental Education
Audubon New York’s For The Birds program uses local birds to connect New York elementary school students to their neighborhood ecosystems.
The Operation That Created ‘Patient H.M.’
Author Luke Dittrich retells the story of the surgery his grandfather performed on Henry Molaison, which resulted in an unintended, life-changing side effect.
16:57
As Automation Advances, Are Jobs in Danger?
As “robots that can weld cars” give way to “robots that can drive cars,” what’s ahead for the workforce?
9:48
Rio Redux: A Second Life for the City’s Olympic Architecture
City officials plan to repurpose Olympic structures as schools, dormitories, and community parks.
7:29
This Battery Will Self-Destruct in 30 Minutes
New research in the emerging field of transient electronics brings us one step closer to a spy-movie future.
12:17
Debating Science in the 2016 Election
A group proposes 20 science-based policy questions for the presidential candidates to address in the months ahead.
17:18
On the Hunt for New Particles in Physics
What could sterile neutrinos, gravitons, and axions tell us about the Standard Model?