Recent announcement from USGS: OrbView-3 satellite images collected around the world between 2003 and 2007 by Orbital Imaging Corporation (now GeoEye) at up to one-meter resolution can now be downloaded at no cost through USGS EarthExplorer. “This is a significant addition to the USGS archive and a valuable resource for the global science community,” said [...]
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Here are the results of a short test of the satellite tracking by the Trimble R6 rover with GLONASS under ...
I initially got pretty excited by this discovery on http://earthexplorer.usgs.gov/ as some of the imagery is 2-4 ft in resolution ...