This image taken by the Mast Camera (MastCam) on NASA’s Curiosity rover highlights the interesting geology of Mount Sharp, a mountain inside Gale Crater, where the rover landed.

This image taken by the Mast Camera (MastCam) on NASA’s Curiosity rover highlights the interesting geology of Mount Sharp, a mountain inside Gale Crater, where the rover landed. (Photo by: Universal History Archive/Universal Images Group via Getty Images)