Ganymede Posted by epsilon on February 14, 2014 Posted in: Art, Photography, Science. Tagged: Ganymede, map, photography, US Geological Survey, voyager space probe. Leave a comment Source: US Geological Survey Ars Technica article Image: a piece of the USGS image, processed using Pixelmator Share this:TwitterFacebookLike this:Like Loading... Posts navigation ← Sonata for Piano and Cello – George Oakley George Oakley’s Sonata for Cello and Piano →