NASA Curiosity's Arm Over 'Marimba' Target on Mount Sharp

NASA's Curiosity Mars rover began close-up investigation of a target called "Marimba," on lower Mount Sharp, during the week preceding the fourth anniversary of the mission's dramatic sky-crane landing. via NASA http://www.nasa.gov/image-feature/jpl/pia20764/curiositys-arm-over-marimba-target-on-mount-sharp