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Landsat celebrates 40 years of photographing our planet

NASA highlights the top five "Earth as Art" images from Landsat satellite, as determined by more than 14,000 Internet votes.By Alan Boyle Follow @b0yleForty years ago today, the first in a string of Landsat satellites was launched to keep continuous track of our planet — and on the 40th birthday, Landsat's handlers demonstrated that satellite observations are the gifts that keep on giving. But for how much longer?"Landsat has really become the gold standard of remote sensing from space," Anne Castle, the Interior Department's assistant secretary for water and science, said...

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Published By: Cosmic Log - Monday, 23 July, 2012


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