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Category Shape / form From year To year Country Time of day Witnesses Evidence Status Duration Sound Colour Motion Lights Sources include Min photos Min videos Min sources Min score Sort order

3D model Narrated

“Hess”

Stories3

Pro early

The Guarulhos Poltergeist (O Poltergeist de Guarulhos)

April 27, 1973 · Guarulhos, São Paulo state

Brazil

Paranormal · Being / humanoid · 19 sources · 2 photos

37Partially documented

Michigan "Swamp Gas" Sightings: Dexter and Hillsdale

March 20, 1966 · Mannor farm near Dexter, Washtenaw County, and Hillsdale College, Hillsdale, Michigan

United States

UAP · Egg · 47 sources

47Partially documented

Seymour Hess sighting at Lowell Observatory, Flagstaff, 1950

May 20, 1950 · Lowell Observatory, Mars Hill, Flagstaff, Coconino County, Arizona

United States

UAP · Sphere · 15 sources

21Thinly documented

Names13 · see all

Hess Person · 2 stories
Seymour Hess was a meteorologist who studied the skies of Mars.
J. Allen Hynek Person · 88 stories
An astronomer, and for years the Air Force's own scientific consultant.
Loren E. Gross Person · 20 stories
Loren E.
Loch Ness Monster Term · 11 stories
A creature said to live in the waters of Loch Ness.
Chesapeake Bay Place · 6 stories
A wide estuary on the American East Coast, and a stage for more than one kind of mystery.
McMinnville Place · 5 stories
A town in Oregon, and the name attached to one of the most debated photo cases in the archive.
Hilary Evans Person · 4 stories
A researcher whose observations surface across several of the archive's strangest cases.
UFO-Sverige Organisation · 4 stories
A Swedish UFO organisation that keeps an archive of cases and takes them seriously enough to argue.
Eric A. Cheezum Person · 3 stories
A historian of the Chesapeake Bay's own sea monster.
Kent Island Place · 3 stories
An island on the Chesapeake Bay, and one of the places where Chessie kept returning.
Washington Post Organisation · 3 stories
A newspaper that kept returning to the strange stories of its own region.
Westmoreland County Place · 3 stories
Two counties share this name in the archive.

Documents17 · see all

UFO Hypothesis and Survival Questions FOIA release

National Security Agency· 7 pages· 1 page mentions it
- p. 5 …loves Vallee Astrometric; Seymour Hess, Astrometer retains some of these objects are probably extra-terrestrial origin is also supported by…
The National Investigations Committee on Aerial Phenomena (Nicap) FOIA release

Central Intelligence Agency· 2001-03-12· 186 pages· 6 pages mention it
- p. 16 …reports, Section VI. 2. Sample contributions to astronomy literature: Hess, Dr. Seymour L., "A Meteorological approach to the question of…
- p. 21 …Studying the UFO with four-power binoculars, Doctor Hess could see no evidence of exhaust or markings on the object…
Comlist: Moscow Consolidated 25 Jan 91 FOIA release

Central Intelligence Agency· 1991-01-25· 11 pages· 1 page mentions it
- p. 9 …un expert at un economic commission for europe, peter hess, on withdrawal of high denomination bank notes aimed at restoring…
Symposium on unidentified flying objects: hearings before the Committee on Science and Astronautics, U.S. House of Representatives, Ninetieth Congress, second session, July 29, 1968. Hearing transcript

U.S. House of Representatives· 1968-07-29· 256 pages· 1 page mentions it
- p. 67 …Seymour Hess observed an object from the groundsof the Lowell Observatory. Although Hess' principal , field of interest has beenmeteorology, we…
James E. McDonald statement, Symposium on UFOs, House Committee on Science and Astronautics Document

Princeton (kirkmcd archive)· 1968-07-29· 55 pages· 1 page mentions it
- p. 30 …Seymour Hess observed an object from the grounds of the Lowell Observatory. Although Hess' principal field of interest has been…
George Adamski FBI file Document

Internet Archive (Paul Galante)· 2018-04-22· 286 pages· 1 page mentions it
- p. 207 …s mour Hess,. of tp;, ~i~v~~~ 1 : . ~ r , a,gsta££1 • Ariz,· He I. said .th r tlie. militfU…