On the record

Blue Book Special Report No. 14

Catalog FG-023When 1955Where Battelle Memorial Institute, Ohio

The first big statistical study of UFO reports, and an argument still running.

Under Air Force contract, Battelle analyzed about 3,200 reports from 1947 to 1952. It found that the better the quality of a report, the more likely it was to remain 'unknown,' with roughly a fifth of all cases unexplained. Yet the report concluded there was no evidence of craft beyond known technology.

Weigh the evidence

The ledger

What the record shows, what people say, and the best explanation available so far.

What's documented

  • The full report is public.

What's claimed

  • Its own numbers contradict its conclusion.

Best explanation so far

Both sides cite it. Skeptics note that 'unknown' means not enough data, not proof of anything exotic.

Where to look

Check the sources

Go to the originals. Every link opens the archive or record in a new tab.