In this installment of Blue Dot, Dave talks to Matt Golombek from NASA's Jet Propulsion Laboratory in Pasadena. Matt has been involved in the site selection for every American rover on Mars. On July 4, 1997, the Mars Pathfinder mission landed on the Red Planet and deployed the tiny Sojourner Rover. Since that time, for the past twenty years, there has always been American rovers on Mars from Sojourner to Spirit and Opportunity and now Curiosity. Learn about this amazing proof of concept mission -- Pathfinder was the first lander to utilize landing air bags -- and the amazing career of Matt Golombek exploring the red planet!