Atavism refers to an organism adopting characteristics of an ancestral form. Such genetic throwbacks are fascinating subjects for evolutionary biologists. On this program, James Rollins discussed atavism in the Alter of Eden.

Engineering is often regarded as the practical implementation of scientific theories. On this program, Prof. Henry Petroski discussed the essential engineer.

Most approaches to curing ADHD rely on medications. On this program, Dr. Stanley Greenspan discussed overcoming ADHD without a pill. On the second half of the program, Dr. William Forstchen discussed the detrimental effects following the detonation of an electromagnetic pulse.

Astrobiologists continue to ponder the possibility of life on other planets. But, are we prepared if intelligent life makes contact? On this program, Prof. Evan Mandery discussed First Contact.

Longevity is a fashionable subject in the popular press. But, what is the scientific evidence supporting popular anti-aging approaches? And, can the country support an expanding elderly population. On this program, Greg Critser discussed Eternity Soup.

The universe is extremely big. Yet, understanding the vastness of space is easier than it may seem. On this program, Dr. Daniel Hudon discussed cosmology for the total novice.

Our consumer driven economies are imposing an enormous burden on the environment. Can traditional Japanese practices help us live more sustainably and comfortably? Reina Otsuka and Nanao Sonobe joins us to talk about Ecotwaza.

Why are we particularly attracted to some people? Is there a chemical basis for love? On this program, Prof. Helen Fisher discussed the science of love and attraction.

Grieving is a complicated process, but one that has typically been characterized in the popular media using outmoded psychological models. On this program, Prof. George Bonanno discussed the Other Side of Sadness.

The remarkable world residing under the sea may have been unknown to many were it not for Jacques Cousteau. On this program, Brad Matsen discussed the life and work of the famed Sea King.