CIA releases declassified Sputnik documents

On October 4, 1957, the Soviet Union successfully launched the Sputnik-1 earth satellite into space—an achievement that stunned the American public and press, but not the U.S. policy and intelligence communities. The Central Intelligence Agency (CIA) reported the advancements that led to this landmark launch to President Eisenhower, providing him with the strategic advantage to guide the U.S. response.

On October 4, the 60th anniversary of Sputnik’s first launch, the CIA released a collection of previously classified documents on the Sputnik program. The collection includes CIA’s intelligence and analysis of Sputniks-1, -2, and -3 and the Soviet ballistic missile program from 1955 to the early 1960s. Encompassing 59 documents and 440 pages, the release provides new information to the public, to include memoranda and reports the CIA provided to President Eisenhower, on the Soviet Union’s early space and missile programs.

The entire collection is available here joins previous CIA releases that address the arms race during the Cold War, which are available at and In addition, to commemorate CIA’s strategic warning contributions about Sputnik, Studies in Intelligence, part of the Center for the Study of Intelligence, published an article, Sputnik and U.S. Intelligence: The Warning Record, available at

In his public remarks at the fourth annual National Security Conference co-hosted by CIA and George Washington University, CIA Director Mike Pompeo summarized it all by highlighting the release of the Sputnik collection and the fitting theme of the conference, “Achieving Strategic Advantage,” stating, “The timing couldn’t be more fitting, as exactly 60 years ago today, the Soviet Union launched Sputnik-1 into space, stunning the public, but not America’s leaders.”

Source: CIA