This image shows the robotic arm of NASA Mars rover Curiosity with the first rock touched by an instrument on the arm. The rover placed the APXS instrument onto the rock to assess what chemical elements were present in the rock.
This image shows the robotic arm of NASA Mars rover Curiosity with the first rock touched by an instrument on the arm. The rover placed the APXS instrument onto the rock to assess what chemical elements were present in the rock.