Thermal infrared data from Landsat is used to determine how much water is used in a farm field thumbnail: http://svs.gsfc.nasa.gov/vis/a000000/a003600/a003632/et_wetfields.0700_gal.png

Landsat Goes to the Library
Landsat made a solid showing at the annual ALA conference (considered “the world’s biggest library event”) in Washington, D.C. this month.