Project Blue Book
From 1952 to 1969 the US Air Force collected the public's reports of objects in the sky at Wright-Patterson: 12,618 of them, and 701 stayed unidentified.
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Project Blue Book, 1952-1969: 12,618 Reports and the 701 Left Unidentified
Project Blue Book was the US Air Force's UFO investigation, run from Wright-Patterson Air Force Base in Ohio from 1952 until its closure on 17 December 1969, after Projects Sign and Grudge. Its 12,618 reports now sit at the National Archives. This article sets out what Blue Book's own staff meant by "unidentified", the cases left that way, the reasons given for closing it, and the reporting channel that ran outside it.
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The Condon Committee, the Low Memo and the UFO Cases Its Report Left Open
The Condon Committee was the University of Colorado's Air Force-funded UFO study of 1966 to 1968, led by the physicist Edward U. Condon. Its report found nothing of scientific value; David Saunders and James McDonald said the study was framed from the start, and J. Allen Hynek said its own unexplained cases went unanswered. This article sets out the Low memo, the firings, the report's own unexplained cases and the reviews, and what is still open.
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The Robertson Panel of 1953 and Its Plan to Strip UFOs of Mystery
The Robertson Panel was five scientists convened by the CIA's Office of Scientific Intelligence from 14 to 17 January 1953 to judge whether UFOs threatened national security. Its signed report found no threat and recommended public education; an unofficial supplement proposed a mass-media program to cut public interest. This article sets out the films and files it reviewed, its words verbatim, the decades of secrecy, and what is still unknown about the program it proposed.