Documents / FOIA release
This Central Intelligence Agency intelligence information report on the USSR is dated 2 November 1977 and was distributed in December 1977. It relays a source's account of an unidentified phenomenon seen at Site 7 one evening in late summer 1973. The source stepped outside during a televised Canada versus USSR sports competition and saw a bright green circular mass in the eastern sky. Concentric green circles formed around it before the color faded within minutes, with no sound, and the source offered no explanation.
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unidentified phenomenon at Site 7. While watching a sport competition between Canada and the USSR on television, he stepped outside for some air and observed an unidentified sharp (bright) green circular object or mass in the sky. The object was situated east of the site at an angle of sighting of approximately 70 degrees. The altitude of the object was undeterminable. (Field Comment: Although there were no clouds in the sky that evening, Source believed that the green mass would have been higher than cloud level. Source could not estimate the diameter of the object.) Within 10 to 15 seconds of observation, the green circle widened and within a brief period of time several green concentric circles formed around the mass. Within minutes the coloring disappeared. There was no sound, such as an explosion, associated with the phenomenon. (Field Comment: Source had no opinion as to what this phenomenon was. There was no resultant runners. Source could not provide any further details.)
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FOIA release, from the cia-readingroom collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 4 pages are in the text index: search them above, or from the library's search.