In response to many "flying saucer" sightings (later unidentified flying objects), the United States Air Force established Project Sign in 1948; this later became Project Grudge, which in turn became Project Blue Book in 1952. Hynek was contacted by Project Sign to act as scientific consultant for their investigation of UFO reports. Hynek would study a UFO report and subsequently decide if its description of the UFO suggested a known astronomical object.
When Project Sign hired Hynek, he was initially skeptical of UFO reports. Hynek suspected that UFO reports were made by unreliable witnesses, or by persons who had misidentified man-made or natural objects. In 1948, Hynek said that "the whole subject seems utterly ridiculous," and described it as a fad that would soon pass.
For the first few years of his UFO studies, Hynek could safely be described as a debunker. He thought that a great many UFOs could be explained as prosaic phenomena misidentified by an observer. But beyond such fairly obvious cases, Hynek often stretched logic to nearly the breaking point in an attempt to explain away as many UFO reports as possible. In his 1977 book, Hynek admitted that he enjoyed his role as a debunker for the Air Force. He also noted that debunking was what the Air Force expected of him.
Change of opinion
Hynek's opinions about UFOs began a slow and gradual shift. After examining hundreds of UFO reports over the decades (including some made by credible witnesses, including astronomers, pilots, police officers, and military personnel), Hynek concluded that some reports represented genuine empirical observations.
Another shift in Hynek's opinions came after conducting an informal poll of his astronomer colleagues in the early 1950s. Among those he queried was Dr. Clyde Tombaugh, who discovered the dwarf planet Pluto. Of 44 astronomers, five (over 11 percent) had seen aerial objects that they could not account for with established, mainstream science. Most of these astronomers had not widely shared their accounts for fear of ridicule or of damage to their reputations or careers (Tombaugh was an exception, having openly discussed his own UFO sightings). Hynek also noted that this 11% figure was, according to most polls, greater than those in the general public who claimed to have seen UFOs. Furthermore, the astronomers were presumably more knowledgeable about observing and evaluating the skies than the general public, so their observations were arguably more impressive. Hynek was also distressed by what he regarded as the dismissive or arrogant attitude of many mainstream scientists towards UFO reports and witnesses.
Early evidence of the shift in Hynek's opinions appeared in 1953, when Hynek wrote an article for the April 1953 issue of
The Journal of the Optical Society of America titled "Unusual Aerial Phenomena," which contained what would become perhaps Hynek's best known statement:
"Ridicule is not part of the scientific method, and people should not be taught that it is. The steady flow of reports, often made in concert by reliable observers, raises questions of scientific obligation and responsibility. Is there ... any residue that is worthy of scientific attention? Or, if there isn't, does not an obligation exist to say so to the public...not in words of open ridicule but seriously, to keep faith with the trust the public places in science and scientists?" (Emphasis in original)
The essay was very carefully worded: Hynek never states that UFOs are an extraordinary phenomenon. But it is clear that, whatever his own views, Hynek was increasingly distressed by what he saw as the superficial manner most scientists looked at UFOs.
In 1953, Hynek was an associate member of the Robertson Panel, which concluded that there was nothing anomalous about UFOs, and that a public relations campaign should be undertaken to debunk the subject and reduce public interest. Hynek would later come to lament that the Robertson Panel had helped make UFOs a disreputable field of study.
When the UFO reports continued at a steady pace, Hynek devoted some time to studying the reports and determined that some were deeply puzzling, even after considerable study. He once said, "As a scientist I must be mindful of the past; all too often it has happened that matters of great value to science were overlooked because the new phenomenon did not fit the accepted scientific outlook of the time."
In a 1985 interview, when asked what caused his change of opinion, Hynek responded, "Two things, really. One was the completely negative and unyielding attitude of the Air Force. They wouldn't give UFOs the chance of existing, even if they were flying up and down the street in broad daylight. Everything had to have an explanation. I began to resent that, even though I basically felt the same way, because I still thought they weren't going about it in the right way. You can't assume that everything is black no matter what. Secondly, the caliber of the witnesses began to trouble me. Quite a few instances were reported by military pilots, for example, and I knew them to be fairly well-trained, so this is when I first began to think that, well, maybe there was something to all this."
Regardless of his own private views, Hynek was, by and large, still echoing the post-Ruppelt line of Project Blue Book: There are no UFOs, and reports can largely be explained as misidentifications.
Hynek remained with Project Sign after it became Project Grudge (though with far less involvement than with Project Sign). Project Grudge was replaced with Project Blue Book in early 1952. Hynek continued as scientific consultant to Project Blue Book. Air Force Captain Edward J. Ruppelt (Blue Book's first director), held Hynek in high regard: "Dr. Hynek was one of the most impressive scientists I met while working on the UFO project, and I met a good many. He didn't do two things that some of them did: give you the answer before he knew the question; or immediately begin to expound on his accomplishments in the field of science."
Though Hynek thought Ruppelt was a capable director who steered Project Blue Book in the right direction, Ruppelt headed Blue Book for only a few years. Hynek has also stated his opinion that after Ruppelt's departure, Project Blue Book was little more than a public relations exercise, further noting that little or no research was undertaken using the scientific method.
Turnaround
Hynek began occasionally disagreeing publicly with the conclusions of Blue Book. By the early 1960s...after about a decade and a half of study...Clark writes that "Hynek's apparent turnaround on the UFO question was an open secret." Only after Blue Book was formally dissolved did Hynek speak more openly about his "turnaround."
By his own admission, the soft-spoken Hynek was cautious and conservative by nature. He speculated that his personality was a factor in the Air Force keeping him on as a consultant for over two decades.
Some other ufologists thought that Hynek was being disingenuous or even duplicitous in his turnaround. Physicist Dr. James E. McDonald, for example, wrote to Hynek in 1970, castigating him for what McDonald saw as his lapses, and suggesting that, when evaluated by later generations, retired Marine Corps Major Donald E. Keyhoe would be regarded as a more objective, honest, and scientific ufologist.
It was during the late stages of Blue Book in the 1960s that Hynek began speaking openly about his disagreements and disappointments with the Air Force. Among the cases where he openly dissented with the Air Force were the highly publicized Portage County UFO chase (where several police officers chased a UFO for half an hour), and the encounter of Lonnie Zamora. A police officer, Zamora reported an encounter with a metallic, egg-shaped aircraft near Socorro, New Mexico. Zamora witnessed two humanoid occupants of the craft, and in its apparently hasty departure, the craft left physical evidence of its presence. As of 2007, no entirely adequate explanation has been presented that would contradict Zamora's account...in fact, in a secret memo for the CIA, Blue Book's director at the time, Major Quintanilla, expressed his own bafflement at the case. Hynek described the case as a potential "Rosetta Stone" that might unlock the UFO mystery.
In late March 1966, in Michigan, two days of mass UFO sightings were reported, and received significant publicity. After studying the reports, Hynek offered a provisional hypothesis for some of the sightings: a few of about 100 witnesses had mistaken swamp gas for something more spectacular. At the press conference where he made his announcement, Hynek repeatedly and strenuously made the qualification that swamp gas was a plausible explanation for only a portion of the Michigan UFO reports, and certainly not for UFO reports in general. But much to his chagrin, Hynek's qualifications were largely overlooked, and the words "swamp gas" were repeated ad infinitum in relation to UFO reports. The explanation was subject to national derision.
Late in his life, Hynek was critical of the popular extraterrestrial hypothesis, and began expressing his doubts to theories that UFOs were physical spacecraft from other planets. As Hynek himself said in October 1976: "I have come to support less and less the idea that UFOs are 'nuts and bolts' spacecrafts from other worlds. There are just too many things going against this theory. To me, it seems ridiculous that super intelligences would travel great distances to do relatively stupid things like stop cars, collect soil samples, and frighten people. I think we must begin to re-examine the evidence. We must begin to look closer to home."
At the First International UFO Congress in 1977, he referred to the subject humorously, presenting his "swamp-gas business" as evidence that he had never been a "believer" in UFOs, as some people assumed, and he stressed that he, as a scientist, never was or would be a "believer" in the sense of accepting something on blind faith.
