It’s now Sol 11 for the Phoenix Mars Mission and a microscope on the Lander has taken images of dust and sand particles with the greatest resolution ever returned from another planet.

The mission's Optical Microscope observed particles that had fallen onto an exposed surface

The mission's Optical Microscope observed particles that had fallen onto an exposed surface, revealing grains as small as one-tenth the diameter of a human hair. Scientists from the mission discuss the implications of their discovery, and what this means for the prospects of discovering ice on the red planet.

Phoenix Mars Mission Site
NASA Phoenix Mars Lander Site
HiRISE site