Explore Episode Segments
12:01
How Touch Helps Us Emotionally Experience the World
Researchers describe a type of nerve that helps us understand social interactions and emotion.
8:27
Laser Blast Can Regrow Teeth, in Rats
Zapping dental stem cells with lasers appears to switch on production of new dentin, the hard stuff under tooth enamel.
16:13
Why Do Some Songs Stick in Our Heads?
“Earworms” are song fragments that get stuck in our mind.
8:45
The Lineup of Cancer Threats Is Changing
A recent study projects that by 2030, pancreatic cancer will become the second most deadly type of cancer in the U.S. after lung cancer.
11:53
A Decade After the Genome, Scientists Map the ‘Proteome’
Nearly all the body’s cells contain identical DNA. So why does a neuron grow up so differently than a liver cell? Proteins, says Akhilesh Pandey, a professor at the Johns Hopkins University.
11:00
How Can Airline Tracking Improve?
How can a commercial airliner go missing, and what can we do to improve tracking technology?
22:55
What’s ‘I,’ and Why?
In “Me, Myself, and Why,” science writer Jennifer Ouellette probes the science of self.