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 to the site of a historic battlefield that ended in a bloodbath 1,400 years ago in Iraq. They compared the imagery taken ...
A new study details how climate change transforms coastal wetlands in North Carolina from forest to marshland or even open water, and how satellite imagery may help better direct conservation efforts ...