More than seven years into what was planned as a three-month mission on Mars, NASA’s Mars Exploration Rover Opportunity has driven more than 20 miles, which is more than 50 times the mission’s original distance goal.
More than seven years into what was planned as a three-month mission on Mars, NASA’s Mars Exploration Rover Opportunity has driven more than 20 miles, which is more than 50 times the mission’s original distance goal.