Scientists use satellites to track weather, map ice sheet melting, detect diseases, show ecosystem change... the list goes on and on. I think nearly every scientific field benefits or could benefit from satellite imagery analysis.
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About Sarah Parcak
Sarah Parcak was American archaeologist. Sarah Helen Parcak is an American archaeologist and Egyptologist, who has used satellite imagery to identify potential archaeological sites in Egypt, Rome, and elsewhere in the former Roman Empire. She is a professor of Anthropology and director of the Laboratory for Global Observation at the University of Alabama at Birmingham. Read more on Wikipedia →