As part of their survey, researchers examined declassified U.S. spy satellite imagery from the 1970s, which is now in the public domain, and compared the visual data to modern-day photography and ...
Declassified 1970s-era US spy satellite images have led archaeologists ... the site while undertaking a remote sensing survey to map the Darb Zubaydah (DZ), a pilgrimage route from Iraq´s Kufa ...
Initially, the team was mapping out the Darb Zubaydah pilgrimage route from Kufa in Iraq to Mecca in Saudi Arabia, using declassified spy satellite ... of circles on the map using distances ...