Earth-observation satellites: Something to watch over us

by Economist, May 12, 2012

ON APRIL 8th Envisat, Europe’s largest Earth-observing satellite, unexpectedly stopped talking to its users on the Earth below. Since then those users have been frantically trying to re-establish contact. They rely on Envisat’s radars and other sensors for a wide range of measurements, from the temperature of the oceans to the chemistry of the stratosphere. Scientists have used it to gauge ocean conditions for shipping and to investigate earthquakes; its data have been the basis of thousands of scientific papers.

For full text of the article, visit Earth-observation satellites: Something to watch over us | The Economist.

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