Declassified documents have revealed the top secret behind a hidden “city” that was found buried deep beneath a vast sheet of ...

Even before the Soviet Union tested its first atomic weapon in 1949, American security officials began secret studies of the ... decided to start an all-out war. The C.I.A. told President Harry ...

Throughout the Cold War’s iciest decades, the top-secret Parcae project ... existence of these satellites with a sparse one-page document. This revelation came during the centennial celebration ...

During the 1960s, the feds asked fresh-out-of-school physicists to try to build a nuke with no prior knowledge.

What the visiting journalists weren’t told—nor were many of the soldiers living at the station, which could house up to ...

Japan allowed U.S. nuclear-armed warships to call at its ports without prior consultation in a secret agreement during Cold War negotiations ... Treaty in 1960, U.S. documents show.

Trump's order is aimed at releasing documents related to the assassinations of the former president, presidential candidate and civil rights leader.

DECLASSIFIED documents have revealed the top secret behind a hidden "city" found buried deep beneath a vast sheet of ice. A restricted military base from the Cold War era, Camp Century was ...