Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
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June 11, 2015

Comparing Global Views of Our Planet, Then and Now

In the decade before the first Earth Day, our view of the planet was still fuzzy. Scientists and engineers of the 1960s were experimenting with satellites to see if and how they could be useful for meteorology and Earth science. Early space imagers were similar to black-and-white television cameras, and the resolution was crude because