The burning satellite was visible around 10 p.m. CST on Nov. 9. According to an interactive map on the American Meteor ...

When the air is partly ionized, freely moving electrons slightly slow down the radio signals travelling to Earth from GPS and ...

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 ...

Archaeologists have discovered the site of the ancient Battle of al-Qadisiyyaha in Iraq using declassified photos from a US ...