Between 2007 and 2009, night security guard Yalcin Yalman recorded video of unidentified objects over the Sea of Marmara near Kumburgaz. The footage is famous — and its authenticity is contested.
Kumburgaz matters because it is a widely circulated video case — a test of treating contested footage honestly without treating it as proof.
Night security guard Yalcin Yalman recorded extensive video of unidentified objects over the Sea of Marmara near Kumburgaz.
Documented
The existence of the footage is documented.
Yalman testified about the recordings. The footage circulated in Turkish and international media.
Documented
The testimony and circulation are documented.
Analyses of the footage differ; its authenticity is contested. The object identity is not established by the video alone.
Debated
The footage’s authenticity and the object identity are disputed.
The footage is contested and should not be treated as authenticated extraordinary-craft footage. No independent official confirmation is established.
Unverified
Any extraterrestrial origin is unverified.
These sources do different jobs: Yalman’s testimony is the witness account, and the Leir and Sirius treatments are secondary. None establishes the footage’s authenticity.
The witness account.
A later analysis, recorded as secondary.
A documentary treatment, recorded as secondary.