The Air Force summaries kept the unknowns

This is a 1948 Air Force compilation of standardized Unidentified Flying Objects checklist reports, incidents 101 through 172, covering fireballs, discs, lights, and other objects seen across the United States and abroad, several judged to be meteors, balloons, birds, or simply unexplained. It continues the same sorting work as the earlier volume. Some objects get ordinary explanations and others stay open. The honest story here is mixed results, not one hidden answer.

open the original, on war.gov ↗