This 3D view of the calibration target for the Mars Hand Lens Imager (MAHLI) aboard NASA's Mars rover Curiosity was assembled from two images taken by that camera during the 34th Martian day, or sol, ...

This set of images from NASA's Curiosity rover shows the inlet covers for the Sample Analysis at Mars instrument opening and closing, as the rover continues to check out its instruments in the first ...

This image shows the Alpha Particle X-Ray Spectrometer (APXS) on NASA's Curiosity rover, with the Martian landscape in the background. The image was taken by Curiosity's Mast Camera on the 32nd ...

A sample of basaltic rock from a lava flow in New Mexico serves as a calibration target carried on the front of NASA's Mars rover Curiosity for the rover's Canadian-made Alpha Particle X-Ray ...

This graphic from NASA's Curiosity rover shows data obtained by the Alpha Particle X-Ray Spectrometer (APXS) from its calibration target on the 34th Martian day, or sol, of operations (Sept. 10, ...