What is life? Even as we send robotic explorers into space to look for signs of life and answer eternal questions of life beyond Earth, scientists lack a coherent definition of the phenomenon. A theoretical underpinning of life is needed, and expeditions to the planet's most extreme environments are helping to broaden our understanding of biological possibilities.
Jeffrey Marlow is a Geobiologist and Postdoctoral Scholar at Harvard University, where he studies deep-ocean microbiology and the inner workings of methane-metabolizing microorganisms. In addition to his scientific research, Marlow writes for Discover Magazine, and is the founder of the Mars Academy, a global education project that brings the excitement and inspirational power of exploration to some of the world’s most disadvantaged communities.
This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx