This amazing image is from NASA’s Visible Earth collection: “This spectacular ‘blue marble’ image is the most detailed true-color image of the entire Earth to date. Using a collection of satellite-based observations, scientists and visualizers stitched together months of observations of the land surface, oceans, sea ice, and clouds into a seamless, true-color mosaic of every square kilometer (.386 square mile) of our planet.” Here is a larger image: ev11656_land_shallow_topo_1024@ELCore_Net.jpg (1024x512).