Medicine & TechnologyNASA's Opportunity Mars Rover is celebrating a new milestone of eleven years on the Red Planet. But in spite of its fortitude, the rover which is only about the size of a riding lawn mower, was originally only designed to explore the Martian surface for about 90 days, along with her twin rover, Spirit.
It's been over a decade since The Opportunity, NASA's newest Mars Rover, began scurrying across the planet's surface―and it's showing some signs of its aging.