Martian Soil in 3-D
Jet Propulsion Laboratory https://www.jpl.nasa.gov/ Jan. 16, 2004
This image taken by the microscopic imager on the Mars Exploration Rover Spirit shows the powdery soil of Mars in 3-D. It is the sharpest look yet at the surface of another planet. The microscopic imager is located on the rover's instrument deployment device, or "arm."