Add Yahoo as a preferred source to see more of our stories on Google. At the dawn of the Cold War, a U.S. Air Force Weather Service WB-29 reconnaissance plane collected airborne radioactive particles ...

US special-purpose aircraft the Constant Phoenix may have been in the South China Sea region to examine radioactive material, military experts said, after a Beijing-based think tank cited satellite ...

North Korea conducted yet another nuclear test on Sept. 8, and it was seemingly the country's most powerful yet. Registering some 10 kilotons, according to reports from South Korea, the blast was ...

The United States Air Force operates many specialty aircraft that provide airborne-monitoring systems. Among the more specialized planes is the WC-135W “Constant Phoenix” atmospheric collection ...

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of The ...