The Shuttle Radar Topography Mission (SRTM) obtained elevation data on a near-global scale to generate the most complete high-resolution digital topographic database of Earth. SRTM consisted of a specially modified radar system that flew onboard the Space Shuttle Endeavour during an 11-day mission in February of 2000.

WW2D is cross-platform, free and open-source application similar to NASA World Wind or Google Earth software.

Maps of energy comsumption, life expectancy, etc projected on a globe