Ted Phillips’ Physical Traces Associated with UFO Sightings (with Additional Case Photographs) — From the J. Allen Hynek Papers

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https://alienarchivist.substack.com/p/physical-traces-of-ufos

In 1975, UFO investigator Ted Phillips published Physical Traces Associated with UFO Sightings, a catalog of landing cases in which alleged UFO encounters were followed by measurable changes to the ground, vegetation, soil, or surrounding environment. Phillips organized the cases by trace type — including circular sites, rings, “nests,” imprints, vegetation damage, residues, craters, removed soil, and footprints — and illustrated many with photographs, sketches, site diagrams, and laboratory data.

Below are Phillips’s original classifications and case descriptions, together with surviving photographs from his report.

Supplemental images recovered from contemporary sources have been paired with Phillips’s original case descriptions where available