10 Years Ago, Opportunity Rover Began a 90-Day Mission That Never Ended

When NASA's Opportunity rover launched on July 7th, 2003, expectations were modest. It would spend 90 Martian days exploring soil and rock samples and taking panoramas of the Red Planet; anything else would be a bonus. Nearly ten years after its initial shift was up, Opportunity is still going strong. » 7/07/13 2:22pm 7/07/13 2:22pm