Too good to be true? Could there really be a usable OS Google Earth alternative. As hard as it was for me to believe, it appears that there is…

WW2D is cross-platform, free and open-source application similar to NASA World Wind or Google Earth software. It allows you to explore Earth using satellite imagery, topographic maps and images from other data sources also providing large placenames and boundaries database and allowing you to install community-made add-ons for even more information about our planet.

In basic configuration WW2D uses images from Blue Marble Next Generation (500 m/pixel), Landsat7 (15 m/pixel), USGS Topo Maps (2.4 m/pixel), USGS Digital Ortho imagery (1 m/pixel), USGS Urban Area Ortho (0.25-0.33 m/pixel) imagery. Source: WW2D

[tags]google earth,ww2d,nasa world wind,usgs topo maps[/tags]