|These color images were acquired by the Phoenix Lander's Surface Stereo Imager on Sols 20 and 24 (June 15 and 19, 2008). These images show sublimation of ice in the trench informally called "Dodo-Goldilocks" over the course of four days. In the lower left corner of the left image, a group of lumps is visible. In the right image, the lumps have disappeared, similar to the process of evaporation. Image credit: NASA/ JPL-Caltech/ University of Arizona/Texas A&M University.