Case File · CIA · Modern Wave (1970-1989) Declassified May 8, 2026 · PURSUE Release 01

When the CIA Filed a Sakharov Wormhole Paper as a UFO Document (1971) — CIA File

UFO Government Report

A CIA intelligence report, declassified in the June 2026 PURSUE release, captured a speculative paper by Nikolai Kardashev and Nobel laureate Andrei Sakharov on charged masses 'bouncing' through collapse into a different region of spacetime — filed by the agency among its UAP records.

September 1971
Byurakan, Armenia, USSR
CIA Intelligence Information Report cover page on the Kardashev-Sakharov paper.
CIA Intelligence Information Report cover page on the Kardashev-Sakharov paper. · Source: declassified document

Incident Overview

Among the seventy-two records the Department of War released on June 12, 2026, one is not a sighting, a sensor track, or a witness statement. It is a two-page CIA Intelligence Information Report describing a physics lecture — and the two physicists who gave it are among the most consequential names of the twentieth century. In September 1971, at a conference near Yerevan in Soviet Armenia, Nikolai Kardashev and Andrei Sakharov presented a speculative paper on what happens when a charged mass collapses in space. The CIA collected it, classified it, and the modern disclosure program has now filed it among the government’s UAP holdings.

The two authors give the document its weight. Nikolai Kardashev is the astrophysicist who in 1964 devised the Kardashev Scale, the still-standard framework for ranking hypothetical civilizations by the energy they command — Type I harnessing a planet, Type II a star, Type III a galaxy. He was one of the founding figures of Soviet SETI. Andrei Sakharov was the theoretical physicist often called the father of the Soviet hydrogen bomb, who later became the Soviet Union’s most prominent dissident and won the 1975 Nobel Peace Prize. A report that captures the two of them speculating together about the structure of spacetime is a genuinely unusual artifact, and it has gone almost entirely unnoticed beneath the release’s headline orb cases.

The setting: the first US–Soviet SETI summit

The CIA cable describes the venue as a “Conference on the Origins of Life in Yerevan, Armenia, 6–8 September 1971.” That is an attendee’s loose shorthand for one of the landmark scientific gatherings of the Cold War: the First Soviet–American Conference on Communication with Extraterrestrial Intelligence, held September 5–11, 1971 at the Byurakan Astrophysical Observatory in the hills above Yerevan. Jointly convened by the U.S. and Soviet academies of sciences, it brought together forty-some of the world’s leading scientists — Carl Sagan, Frank Drake, and Philip Morrison on the American side; Kardashev, Iosif Shklovsky, and Victor Ambartsumian on the Soviet side; Nobel laureates Francis Crick and Charles Townes among the attendees. It was, in effect, the meeting that set the agenda for the modern search for extraterrestrial intelligence.

That the CIA had a source inside it is itself part of the story. The report is stamped as a product of the agency’s domestic collection program, drawn from “a letter received from a reliable colleague who attended the Yerevan Conference” — a U.S. citizen scientist debriefed on return. Throughout the Cold War the CIA routinely collected scientific intelligence by interviewing American researchers who had attended Soviet conferences, less to chase flying saucers than to gauge the direction and sophistication of Soviet theoretical physics. This document is a clean example of that machinery, pointed at the first time American and Soviet scientists sat in one room to discuss contact with other civilizations.

What Kardashev and Sakharov actually proposed

The physics in the cable is brief but specific, and it is recognizably a real idea. Kardashev, the report says, described what happens to a collapsing mass. If the mass carries no electric charge, it “would just collapse past the point of gravitational singularity and be gone forever” — closing in on itself with no further contact with the outside world, the classic picture of a black hole. But if the mass is charged, the authors argued, it would behave differently: it “would collapse but bounce back out,” re-emerging into “a different part of spacetime.”

This is not crankery. A charged, non-rotating black hole is described in general relativity by the Reissner–Nordström solution, and its idealized interior geometry famously differs from the simple uncharged case — the mathematics permits, in principle, passage toward another region of spacetime rather than termination at a crushing singularity. It is the formal seed of what the later popular vocabulary would call a wormhole or a white hole. The cable records that Sakharov was drawn to the problem because it suggested “the structure of space may be much more complicated than is presently thought,” while Kardashev was interested in its implications for astrophysics. The American attendee’s verdict, preserved verbatim, is wonderfully human: the speculation struck him as “a little fantastic” and the authors had “taken off in a rather wild way” — yet he judged the paper “grounded in good and sound physics.”

Status of the case

Nothing in this document describes an unidentified object, and its inclusion in a UAP release should be read for what it is. AARO designates everything in the PURSUE corpus “unresolved” by default, but that label is almost meaningless here: this is a piece of Cold War scientific intelligence, not an encounter. Its presence in the file most likely reflects the throughline that connects the whole UAP question to theoretical physics — the perennial objection that the distances between stars make visitation implausible, and the corresponding interest in any serious physics that might get around that limit. A 1971 paper by two titans of Soviet science on masses “bouncing” through collapse into another region of spacetime sits exactly on that nerve. It is evidence of what scientists were thinking and what the CIA was watching, not of anything in the sky. Its real value is historical: it places two of the century’s most famous physicists, at the founding summit of SETI, sketching the kind of exotic-spacetime idea that has shadowed the UAP propulsion debate ever since — and it shows the agency quietly taking notes.

Sources