NASA May Have Put A Nuclear-Powered Robot On Mars

But two other rovers are taking home the prize. The team behind older Mars rovers Spirit and Opportunity has earned a Haley Space Flight Award. The team at NASA's Jet Propulsion Laboratory in Pasadena, Calif., joins the likes of John Glenn, the first man to orbit the Earth, in receiving the award. The solar-powered Spirit and Opportunity have been on Mars for almost nine years. Opportunity is still at work, exploring rocks in search of clay, which could provide new information about a formerly wet environment.The small rovers pale in size when compared to their newest cousin, Curiosity. It landed on the red planet last month and is the size of a car.