Science and U: Converting CO2 to Diamonds, Plastic Conductivity Discovery

Physicist Dr. Weiping Yu returns with Science and U. Dr. Yu talks about the discovery of a new way to make plastic act like metal. Is there a better conductor of electricity than metal? Can we transform carbon dioxide in the air into things like diamonds? What can we expect from NASA’s upcoming moon project? Will there be an American flag planted on Mars in the foreseeable future?