The USGS and NASA have teamed up to bring the public stunning images of the Earth taken by the Landsat-7 satellite and the Terra Satellite's Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). Visitors can browse the images by continent or alphabetically. The images can be used as supplementary materials during educational lectures about rock outcrops, deserts, deltas, clouds, glaciers, and many other earth science topics. The website allows users to download the images as posters and wallpaper. This site is also reviewed in the February 4, 2005_NSDL Physical Sciences Report_.