Day: January 15, 2015

News Archive
Growing crop circles; Garden City, Kansas, 1972-2011. Landsat imagery over time can be used to help monitor groundwater usage from the Ogalalla Aquifer. Image credit: USGS

Landsat Seen as Stunning Return on Public Investment

Orbiting Earth more than 400 miles away in space, far from human view; recording repeated images of land around the globe for more than 42 years; offering customers petabytes of historical and current data for free, the Landsat program of Earth observing satellites could be seen as the personification of the most single-minded office worker — tirelessly systematic, yes, but after so many years, perhaps less than dramatic.

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