Sarah Parcak is an American archaeologist, Egyptologist, and remote sensing expert, who has used satellite imaging to identify potential archaeological sites in Egypt, Rome, and elsewhere in the former Roman Empire. She is the associate professor of Anthropology and director of the Laboratory for Global Observation at the University of Alabama at Birmingham. GlobalXplorer is the citizen science platform Sarah Parcak built with the 2016 TED Prize, to train a 21st century virtual army to help look for signs of archaeological looting, urban encroachment and sites that haven’t been excavated yet.