This image is from the mini-thermal emission spectrometer, an instrument that detects the infrared light, or heat, emitted by objects. The different colored circles show a spectrum of soil and rock temperatures, with red representing warmer regions and blue, cooler. Clusters of cool rocks can be seen to the left and center. Scientists and engineers will use this data to pinpoint features of interest, and to plot a safe course for the rover free of hazy dust. The mini-thermal emission spectrometer data has been superimposed on an image taken by the rover's panoramic camera. Credit: NASA/JPL/Arizona State University/Cornell University You can download a larger version of the image here.