Mars lander poised to bake soil, then test it

This image released by NASA taken by NASA's Phoenix Mars Lander's Surface Stereo Imager on Thursday, June 5, 2008, shows the Robotic Arm scoop containing a soil sample poised over the partially open door of the Thermal and Evolved-Gas Analyzer's number four cell, or oven. (AP Photo/NASA/JPL-Caltech/University of Arizona/Texas A&M University)