ScienceOpportunity Rover Celebrates Stunning 12th Anniversary On Mars The original expedition was expected to last for three months. Aw, shoot, we left the rover on Mars. I'm not going back there. The Opportunity, which landed on Mars in 2004, was expected to stay there a cool three months, gather data, and bounce.by Carrie Poppy
WATCH: Runner Spends Year Using Exercise Tracker to Create Elaborate Stick Figure Art on City Streets
