Key figures

J. Allen Hynek

The astronomer who advised Project Blue Book, coined "close encounters" and founded CUFOS. 25 events, newest first.

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Open J. Allen Hynek as a timeline

2010s

Media

History's scripted series 'Project Blue Book' premieres

History premiered a period drama from executive producer Robert Zemeckis, starring Aidan Gillen as astronomer J. Allen Hynek, with episodes drawn from Air Force Blue Book cases. It ran two seasons before History ended it in 2020.

Photo: U.S. Air Force, Public domain

1980s

Media

'Night Siege' on the Hudson Valley sightings published

Night Siege: The Hudson Valley UFO Sightings by J. Allen Hynek, Philip Imbrogno and Bob Pratt was published by Ballantine after Hynek's 1986 death, collecting accounts of the large lights reported over New York's Hudson Valley in the 1980s.

Photo: United States Government, Public domain

Close encounters

J. Allen Hynek dies

Astronomer J. Allen Hynek, longtime scientific consultant to the Air Force UFO projects, died at 75 in Scottsdale, Arizona. He had become a critic of Blue Book's methods, founded the Center for UFO Studies and coined the 'close encounters' terms in his 1972 book.

Photo: United States Government, Public domain

Media

J. Allen Hynek moves to Scottsdale, Arizona

Astronomer J. Allen Hynek moved to Scottsdale, Arizona, drawn by a potential benefactor for his UFO research. The hoped-for revival of his work did not materialize, and he died in Scottsdale in 1986.

Photo: United States Government, Public domain

1970s

Close encounters

Allan Hendry publishes The UFO Handbook

Allan Hendry, chief investigator for Hynek's Center for UFO Studies, published a guide drawn from 1,307 reports he probed in 15 months. He found prosaic causes for all but about 8.6 percent; skeptic Philip Klass praised it highly in a review.

Media

CUFOS launches the Journal of UFO Studies

The Center for UFO Studies, founded by astronomer J. Allen Hynek, began publishing the Journal of UFO Studies in 1979 as a scholarly outlet. The first series ran to 1983 and a second series from 1989 to 2006.

Photo: United States Government, Public domain

Government

Hynek and Vallee address the UN Special Political Committee

At a UN Special Political Committee meeting on Grenada's UFO item, astronomer J. Allen Hynek, speaking with Grenada's delegation, said the phenomenon's scope was not recognized, and Jacques Vallee urged scientific study while saying there was no evidence UFOs were visitors from space.

Photo: United States Government, Public domain

Media

Close Encounters of the Third Kind premieres

Steven Spielberg's film Close Encounters of the Third Kind had its premiere in New York. Its title uses a term coined by Northwestern University astronomer J. Allen Hynek, who was credited as a technical adviser. The Library of Congress added the film to the National Film Registry in 2007.

Photo: Sanjay Acharya, CC BY-SA 4.0

Media

Hynek publishes 'The Hynek UFO Report'

J. Allen Hynek, the Air Force's longtime scientific consultant on Project Blue Book, published The Hynek UFO Report, drawing on Blue Book material to criticize how the Air Force handled UFO reports. MUFON reissued it in 2020.

Photo: United States Government, Public domain

Government

Hynek's FBI bulletin article steers police UFO reports to the CUFOS hotline

J. Allen Hynek's article 'The UFO Mystery' in the February 1975 FBI Law Enforcement Bulletin urged police to pass UFO reports to his Center for UFO Studies in Northfield, Illinois, which kept an unpublished toll-free hotline for police and official agencies.

Photo: United States Government, Public domain

Media

Hynek and Vallee publish 'The Edge of Reality'

Former Blue Book consultant J. Allen Hynek and computer scientist Jacques Vallee published 'The Edge of Reality: A Progress Report on Unidentified Flying Objects', treating UFOs as a real but unexplained phenomenon and proposing a framework for further study.

Photo: United States Government, Public domain

Close encounters

J. Allen Hynek founds the Center for UFO Studies

Astronomer J. Allen Hynek, former scientific consultant to Project Blue Book, started the Center for UFO Studies, initially run from a room in his Evanston home. He led it as scientific director until his death in 1986; it continues as a research library and archive.

Photo: United States Government, Public domain

Close encounters

Hynek publishes The UFO Experience

Northwestern astronomer J. Allen Hynek, long a scientific consultant to the Air Force's UFO projects, published The UFO Experience: A Scientific Inquiry. It sorted reports into close encounters of the first, second and third kind, a scheme later echoed in Spielberg's 1977 film.

Photo: United States Government, Public domain

1960s

Media

Hynek critiques the Condon Report in the Bulletin of the Atomic Scientists

In a review essay titled 'The Condon Report and UFOs', Blue Book science consultant J. Allen Hynek argued that the report's own unexplained cases did not support its conclusion that further UFO study was not worthwhile, and faulted its case selection and methods.

Photo: Bulletin of the Atomic Scientists, Public domain

Government

House symposium on UFOs

The House Committee on Science and Astronautics held a one-day symposium on UFOs chaired by Rep. J. Edward Roush. Six scientists, including J. Allen Hynek, James McDonald and Carl Sagan, presented views, and further papers were added to the printed record.

Photo: US Congress, Public domain

Media

Hynek's 'Are Flying Saucers Real?' in the Saturday Evening Post

In a national magazine, Air Force consultant J. Allen Hynek wrote that most UFO reports had ordinary explanations but a small residue remained puzzling. He criticized how the Air Force handled the subject, called for real scientific study and said he had seen no evidence of a deliberate cover-up.

Photo: United States Government, Public domain

Close encounters

Hynek's letter 'UFO's Merit Scientific Study' in Science

J. Allen Hynek, the Air Force's own scientific consultant on UFOs, published a letter in the journal Science urging scientists to give unexplained reports serious, scholarly study rather than dismissing the subject.

Photo: United States Government, Public domain

Government

House Armed Services UFO hearing

The House Armed Services Committee held an open hearing on UFOs with Air Force Secretary Harold Brown, Blue Book consultant J. Allen Hynek and Maj. Hector Quintanilla. Brown said an advisory board found no threat and urged contracts with universities to study selected sightings.

Photo: United States Department of Defense, Public domain

Sightings

Michigan 'swamp gas' sightings

Police and residents near Dexter and Hillsdale, Michigan reported glowing lights over swampy ground. Air Force consultant J. Allen Hynek suggested swamp gas, drawing ridicule, and Rep. Gerald Ford called for hearings, which the House Armed Services Committee held that April.

Photo: Gerald R. Ford / US Congress, Public domain

Close encounters

Contactee George Adamski dies

George Adamski, the best-known 1950s contactee, died of a heart attack in Maryland at 74. His claims of meeting Venusians and his saucer photographs had been dismissed by investigators, including Blue Book consultant J. Allen Hynek, who called the photos crude fakes.

Photo: Unknown (likely a Buffalo Evening News or press photo), Public domain

Government

J. Allen Hynek becomes chair of Northwestern's astronomy department

Astronomer J. Allen Hynek, the Air Force's scientific consultant on UFO reports, chaired Northwestern University's astronomy department and directed its Dearborn Observatory from 1960 to 1978, the base for his later UFO research.

Photo: United States Government, Public domain

1950s

Government

Blue Book reports astronomer survey: 5 of 44 saw unexplained objects

Project Blue Book's Status Report No. 8 summarized summer 1952 conferences its contract astronomer, J. Allen Hynek, held with 44 professional astronomers. Five had seen things they could not readily explain; most were neither hostile nor very interested in the subject.

Photo: Unknown author, Public domain

1940s

Military

Hynek's astronomical review of Project Sign cases

Astronomer J. Allen Hynek reviewed the 237 reports gathered by the Air Force's Project Sign. His final report attributed about a third to astronomical causes such as planets and meteors, about a third more to balloons, rockets, flares or birds, and left about a fifth unidentified.

Photo: US Air Force, Public domain

Government

Astronomer J. Allen Hynek becomes Project Sign consultant

In early 1948, Air Force officers from Wright-Patterson asked J. Allen Hynek, director of Ohio State's McMillin Observatory, to help Project Sign find which saucer reports were astronomical. Hynek, then a skeptic, had no role in Grudge but returned as Blue Book's consultant from 1952 to 1969.

Photo: United States Government, Public domain