Space technology: Landsat: Multispectral eye in the sky: Data collected by the Landsat satellites' remote sensors are exploited in mapping, meteorology, and resource identification

Smoke emissions from Indiana steel mills can cause rain or snow. There's a new fault in southern California that has been related to earthquake activity. And the Trans-Amazon Highway had been mislocated on conventional maps by more than 35 km. All these discoveries are the result of multispectral imaging by Landsat satellites, which, since 1972, have used remote sensors to collect data on waterflow, seismic action, geographic locations, land use, agriculture, mineral resources, and environmental phenomena.