Flickr has published two amazing high-def photos of earth from one of NASA's earth observing satellite - Suomi NPP. The photos are created by joining several high def photos and joining them together, as explained here.
The original photo on the left of the western hemisphere is available on Flickr with a resolution of 8000x8000 or 64 megapixels! (link to the original, beware of the size!) To top even that, NASA made available the second image of the eastern hemisphere on Flickr with a resolution of 11500 x 11500 or 132 megapixels! (link to the original, beware of the size!)
Credit: All photos and info from NASA Goddard Photo and Video.