UNCLASSIFIED // PUBLIC RELEASERELEASE 03 · JUNE 12, 2026

PENTAGON UFO FILE · DOCUMENT · CIA-UAP-008

Speculative Paper By N Kardashev and A Sakharov on Charged Mass in Space at Conference on Origins Of Life, Armenia, 6-8 September 1971/Low Scientific Level Of Other Soviet Papers

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This CIA Intelligence Information Report, dated 10 April 1972, has nothing to do with sightings. It is a piece of scientific intelligence: edited extracts from a letter by an American who attended a Soviet conference on the origins of life in Yerevan, Armenia, in September 1971. The release does not explain why it was grouped with UFO records.

What the attendee reported

The highlight was a paper by the astrophysicist N. S. Kardashev of the Institute for Space Research in Moscow, written with the physicist Andrei Sakharov, already world-famous. It asked what happens when a mass collapses in space. An uncharged mass, Kardashev said, would collapse past the point of gravitational singularity and be cut off from the outside world for good. A charged mass, the authors argued, might collapse and then “bounce” back out, reappearing in a different part of spacetime.

Afterwards Kardashev told the American that Sakharov was mainly interested because it suggested space might be far more complicated than assumed, while he himself cared about its implications for astrophysics. The attendee thought the speculation “a little fantastic” but grounded in sound physics. The title adds that the other Soviet papers were of a low scientific level.

Context

Kardashev is best known for his scale ranking hypothetical civilizations by energy use, a staple of the search for extraterrestrial intelligence. The report itself never mentions UFOs; its interest for the agency was what Soviet scientists were working on and how good their work was.

The official description

From war.gov/UFO, released June 12, 2026, quoted in full

This 1972 CIA Intelligence Information Report summarizes a US attendee's observations of a speculative paper regarding charged mass behavior in space presented by Soviet scientists N.S. Kardashev and A. Sakharov at a conference in Armenia. A more redacted version of this report has been available on CIA's public website.

The summary above is our own, written from the file itself; the official description is the government’s, from war.gov/UFO. The Pentagon calls these unresolved cases — publishing a file does not mean it shows anything anomalous.

Last updated October 18, 2026