This pairing illustrates the first time that NASA's Mars rover Curiosity collected a scoop of soil on Mars. It combines two raw images taken on the mission's 61st Martian day, or sol (Oct. 7, 2012) by the right camera of the rover's two-camera Mast Camera (Mastcam) instrument. The right Mastcam, or Mastcam-100, has a telephoto, 100-millimeter-focal-length lens.
The image on the left shows the ground at the location "Rocknest" after the scoop of sand and dust had been removed. The image on the right shows the material inside the rover's scoop, which is 1.8 inches (4.5 centimeters) wide, 2.8 inches (7 centimeters) long.