Google Mars has been available since 2009 as part of the free downloadable Google Earth. It allows viewers to zoom around the Red Planet in much higher resolution than the simpler browser version and will even render certain locations in 3-D. You can reach it by clicking the little orange Saturn-shaped button at the top of the screen in Google Earth. Google has now updated their Mars coverage by including large swaths from the Context Camera (CTX) on NASA’s Mars Reconnaissance Orbiter. CTX offers great details with around 20 feet per pixel. Each of the gray bands in the picture above represents one of CTX’s imaged areas, showing the extent of the coverage.