Search for the Origin of Life
The Search for the Origin of Life takes a personal look at scientists around the United States working with the NASA Astrobiology Institute (NAI) to understand the origin of life. Attempting the seemingly impossible, these researchers want to answer one of humanity's oldest questions - how did life begin? Travel with them to some of our planet Earth's most extreme environments - from the frozen gl
Aired: 09/25/13Video has closed captioning.