NASA's Mars Science Laboratory, also known as the Curiosity Mars rover, is a huge six-wheeled robot the size of a small car. The nuclear-powered rover won't land using rockets or airbags like past Mars missions. Instead, NASA has built a rocket-propelled
Curiosity Mars rover has imaged a small metallic-looking protuberance on a rock. Visible (in the image below the green lines point to it), the protuberance appears to have a high albedo and even projects a shadow on the rock below.