Robert M. Hazen is executive director of the Deep Carbon Observatory based at the Carnegie Institution's Geophysical Laboratory and Clarence Robinson Professor of Earth Sciences at George Mason University. He lives in Bethesda, Maryland.
Paul Brion has a passion for storytelling. He believes that audiobooks-our most current form of the oral tradition-are the purest of the interactive and co-creative arts. An autodidact with eclectic interests, he enjoys learning about a wide variety of subjects, as he has an avaricious hunger for knowledge.