NG Live!: Bethany Ehlmann: Commanding Robots on Mars

Without little green men to conquer, National Geographic Emerging Explorer and planetary geologist Bethany Ehlmann has been free to direct NASA's Curiosity rover simply to study the ancient rocks and environment of our cool red neighbor.

The National Geographic Live! series brings thought-provoking presentations by today’s leading explorers, scientists, photographers, and performing artists right to your YouTube feed. Each presentation is filmed in front of a live audience at National Geographic headquarters in Washington, D.C. New clips air every Monday.