Curiosity Rover Spies Sand Dunes on Mars & Ancient Freshwater Deposits (Photos)
The Curiosity rover’s first five years on Mars have been full of drama and scientific accomplishment. The six-wheeled robot then began making its way toward the 3.4-mile-high (5.5 kilometers) Mount Sharp (Aeolis Mons) to study the layers in the mountain and track the area’s geologic history.
While the mission has been full of successes, Curiosity has had some trouble with its wheels. Initially, the wheels were deteriorating faster than expected on the tough Martian terrain, but NASA modified the rover’s driving style, taking it along gentler routes.