Recent episodes

Goodall Reflects On A Lifetime Of Chimp Research More than 45 years ago, primatologist Jane Goodall observed wild chimpanzees making and using tools — a finding that dramatically changed the field of primate research. Goodall discusses her career and what lies ahead in the field of evolutionary science.

Happy Tunes May Make For Healthier Hearts Researchers report that listening to joyful music can cause blood vessels to dilate, increasing blood flow — which is good for cardiovascular health. Michael Miller, principal investigator of the study, explains the brain-body link and which songs may make for healthy hearts.

How To Have A Water Balloon Fight ... In Space Mechanical engineers Seth Lichter and Mark Weislogel wondered what would happen if they popped water balloons aboard NASA's low-gravity aircraft. Aside from the "fun factor," as Weislogel puts it, the results demonstrate some basic principles of physics.

Study Reveals How Bleach Wipes Out Bacteria Researchers have figured out just how bleach kills bacteria, according to a new study in the journal Cell. Ursula Jakob, one of the authors of the paper, explains how bleach does its dirty work and how this information might be put to good use.