2007–2009·Kumburgaz, Istanbul
Turkey.Kumburgaz (Yalman)
Between 2007 and 2009, night guard Yalçın Yalman filmed from Kumburgaz, over the Sea of Marmara, lights that in the most magnified shots look like disc-shaped objects (some twenty-five video segments). The TÜBİTAK National Observatory examined the 2007 tapes and concluded they were not animation or editing, but that the objects' location, distance, size and nature could not be determined.
Tier A · AcceptableWhat do they mean? →
Institutional evidence: several identified independent witnesses, or contemporary official documentation, without an instrumental record to corroborate them.
What it was
60%natural or human cause
Most likely explanation: human light or activity
See the split across the six explanations
Natural or human cause
No known cause
Primary documents

Context · Kumburgaz (Istanbul), the coast from which the 2007 video was recorded
Sunset Kumburgaz.jpg · Wikimedia Commons · CC BY-SA 4.0 · open original
Anadolu Agency · the TÜBİTAK National Observatory's preliminary review of the tapes (5 February 2008)
Dispatch from the Turkish state news agency, in Turkish, summarising the TÜBİTAK National Observatory's preliminary report on the Kumburgaz guard's tapes. Going by the time codes, the footage was mostly from summer 2007; the report says it is not computer animation, a video effect or a studio re-creation, that the AM/PM indicator casts doubt on the times, and that with no other reference object in the frames the position, distance, size and nature of the objects cannot be known. The director, Zeki Eker, said it was not a montage, but neither could it be proved not to be a prank. Copyrighted press: linked here.
Anadolu Ajansı, vía Memurlar.net (5 feb 2008), en turco · view source
The years in question
Between May 2007 and the summer of 2009, Yalçın Yalman, a night security guard at a residential complex in Kumburgaz (the western edge of Istanbul, on the Sea of Marmara coast), repeatedly filmed objects over the sea during multiple early-morning hours, almost always at the same time of year. According to the private Sirius centre, which circulated the footage, Yalman used a camera with a high-magnification telephoto lens (cited as up to 200x) to capture the distant lights, and the material accumulated over the three years on Hi-8 and Mini-DV cassettes, totaling several hours and some twenty-five separate video segments; other residents also filmed the phenomenon.
In the closest shots, the object appears disc-shaped, with a central dome or structure and what look like portholes or peripheral lights; in some heavily magnified frames, shapes can be made out that some observers interpreted as figures inside the structure. The consistency of the morphology across shots from different dates is one of the most-cited features of the case.
The TÜBİTAK National Observatory (Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, Turkey's Scientific and Technological Research Council) made a preliminary examination of the tapes, whose report the Anadolu agency released on February 5, 2008. Judging by the time codes, the material examined was mostly from the summer of 2007, so the examination does not cover the later recordings. The report concluded that the images were not "a computer animation, a special video effect or a studio re-creation", and that some had been taken at night, at some height above the horizon; that the Moon appeared in some shots, a sign of clear skies; and that finding out what they were would require filming at the same place and in the same conditions with special equipment. But it also found that, with no other reference object in the same frames, they could give no information about "the real locations, distances, sizes or nature" of the objects; that the time display, which sometimes read AM and other times PM, cast doubt on the times of the shots; and that the term 'UFO' could be used, but in no way meant the objects were extraterrestrial. The Observatory's director, Zeki Eker, said the recordings were not edited, but that they had not been able to understand what they were: "It may be someone's prank. But it cannot be proven whether these images are a prank or not."
Why it matters
Kumburgaz combines a video corpus of hours of material, repeated over three years from a single location, with a preliminary examination by a national scientific agency that ruled out computer animation and editing. That examination had a limited reach: it could not determine where the objects were, how far away, how large or what they were, and the Observatory's director did not rule out a prank. The morphological consistency across shots separated in time complicates the hypothesis of a one-off camera artifact.
But the case tends to fuse two different things: the video being authentic does not mean the object is anomalous. The TÜBİTAK finding validates the carrier (not animation, not editing), not the interpretation (what was filmed). And here a structural limitation weighs heavily: the entire material comes essentially from a single operator, from a single vantage point, aimed over the sea with an extreme telephoto lens. The most developed skeptical hypothesis, Chilean researcher Andrés Duarte's (that, in Kentaro Mori's summary, the shots pointed toward the Güzelce marina and that the 'objects' are side windows of boats or small yachts reflecting light, distorted by the extreme zoom and low light), is geometrically and optically compatible with the most-cited frames, and was never formally refuted. Duarte also notes that the cameraman seems to deliberately play with a nearby tree to obstruct the lights of buildings that should be visible to the left, and with the camera exposure, so that only the object and the Moon appear in the footage. A single vantage point over water with extreme optics is precisely the setting where a mundane object can take on an extraordinary appearance. Kumburgaz illustrates a recurring pattern: an institutional finding of authenticity is improperly transferred, in public circulation, into a finding of anomaly, when these are logically distinct claims.
What's left on paper
Documented evidence
- Yalman video corpus (Hi-8 + Mini-DV, ~25 segments) preserved, filmed over three years
- Preliminary examination by the TÜBİTAK National Observatory (Anadolu, Feb 5, 2008) of tapes mostly from summer 2007: not animation or editing, but the objects' location, distance, size and nature cannot be determined
- Morphological consistency across independent shots over three years
- Material circulated by the private Sirius UFO research centre (SOBE), not by an official body
- Andrés Duarte's hypothesis: shots aimed toward the Güzelce marina; the objects would be side windows of boats or small yachts
- Duarte: the cameraman seems to play with a nearby tree and the exposure so that the buildings' lights to the left are hidden and only the object and the Moon appear
Sources
- Anadolu Agency via Memurlar.net — 'UFO iddiasındaki görüntüler, TÜBİTAK tarafından şüphe ile karşılandı' (Feb 5, 2008) — Reports the TÜBİTAK National Observatory's preliminary report and the statements of its director, Zeki Eker.
- Sirius UFO Research Center (Turkey)
- Yalman, Y. — Kumburgaz footage archive — Primary material held by the private Sirius centre (SOBE); not consulted directly
- Metabunk — '2008 UFO Footage From Kumburgaz, Turkey' (thread, Jul 2018), quoting Andrés Duarte's analysis published at forgetomori.com (2010) — The original forgetomori page no longer responds (404); the thread quotes the analysis verbatim.
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