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View Full Version : 30 Years of City Growth Seen From Space



Fraser
2013-Jul-29, 06:00 PM
Since the launch of its first satellite in 1972, the eight NASA/USGS Landsat satellites have made the longest continuous observations of Earth’s surface, providing invaluable data for research in agriculture, geology, forestry, regional planning, education, mapping, global change research, as well as important emergency response and disaster relief information. In addition, having such a long [...]

More... (http://www.universetoday.com/103813/30-years-of-city-growth-seen-from-space/)