Wikipedia overview indexed “Petrozavodsk phenomenon” in connection with the public record around Petrozavodsk phenomenon, a 1977 UFO/UAP dossier centered on Petrozavodsk and northwest USSR, Russia. The source is useful because it fixes a checkable part of the record: who published the material, what topic it addressed, and how it connects to the timeline, witness layer, official response or later research around the case.
The accessible source text states: The Petrozavodsk phenomenon was a series of celestial events of a disputed nature that occurred on 20 September 1977. The sightings were reported over a vast territory, from Copenhagen and Helsinki in the west to Vladivostok in the east. In the archive context, that material is treated as a primary or secondary record to be compared with the case chronology rather than as a standalone proof of an extraordinary origin.
For Petrozavodsk phenomenon, the relevant evidence categories include mass witnesses, press reports, space launch context. The source should therefore be read alongside the dossier's witness accounts, timeline, evidence analysis and skeptical notes, especially where the material concerns official statements, video records, archival summaries or media reports.
The evidence boundary remains important. A source page can document that a report, document, video or database entry exists, but it does not by itself establish that the object or event was anomalous. This local record preserves the source's role in the case while keeping unresolved claims separate from confirmed facts. Original source URL: https://en.wikipedia.org/wiki/Petrozavodsk_phenomenon