WOW: 9 years on Mars! Curiosity rover marks another anniversary. “During its nine years on Mars, Curiosity has traveled a total of 16.14 miles (25.98 km). And its odometer could keep ticking over for a while to come. The rover is in good health despite its relatively advanced age, mission team members have said, and its nuclear power system is designed to operate for a minimum of 14 years.”