Public Genomes, Algae Fuel, Mystery of the Gakkel Ridge,...
Clip: Season 4 Episode 6 | 52m 39s
Season 4: Episode 6
Aired: 08/18/09Video has closed captioning.
Problems Playing Video?
Funding for NOVA is provided by David H. Koch, the Corporation for Public Broadcasting and PBS viewers. Additional funding is provided by George D. Smith.