NASA's Phoenix Mars Lander's Surface Stereo Imager took this false color image on Sol 72 (August 7, 2008), the 72nd Martian day after landing. It shows a dirt sample from a trench informally called "Rosy Red" after being delivered to a gap between partially opened doors on the lander's Thermal and Evolved-Gas Analyzer, or TEGA. Credit: NASA/JPL-Caltech/University of Arizona/Texas A&M University
