2022-09 · Main Astronomical Observatory, Kyiv, Ukraine · UA
Sourcing status: Disputed — this is a contested claim, not independently verified. Presented as a documented claim, not established fact.
A pre-print posted by Ukrainian astronomers from the Main Astronomical Observatory and Kyiv National University reported video observations of fast 'cosmic-velocity' objects in Ukrainian airspace, applying triangulation. Methodology and findings have been contested in subsequent commentary.
Sources
peer_reviewed: Zhilyaev, B. et al, arXiv 2208.11215 (2022)