An astronomer, and for years the Air Force's own scientific consultant. J. Allen Hynek consulted for Project Sign in 1948 and later served Project Blue Book. In Socorro in 1964 he interviewed Lonnie Zamora and found him basically sincere, honest and reliable. Two years later in Michigan came his swamp gas explanation, and the press mocked it. Over time he broke with official verdicts. By 1972 he regretted agreeing to ball lightning at Levelland. With the Center for UFO Studies he received Betty Andreasson's 1975 letter. He also sat on the Project Hessdalen advisory committee.
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Astronomer linked to the Venus explanation, which he later rejected

Astronomer and Project Sign consultant who favored a bright meteor

Astronomer who criticised the Air Force's weak follow-up on the case

Retold the case in The Hynek UFO Report (1977)

Astronomer present at the Robertson Panel who objected to the bird explanation

Air Force consultant who later withdrew his agreement with the ball lightning verdict

Astronomer and CUFOS founder who studied the case

Astronomer said to have spoken with her

Wrote the case up in The Hynek UFO Report

Project Blue Book science consultant who interviewed Zamora

Astronomer and Blue Book consultant who criticised the Air Force handling

Project Blue Book scientific consultant who proposed the marsh gas explanation

Astronomer who pushed for the Venus finding to be withdrawn

Center for UFO Studies; received Betty's 1975 letter and wrote the book's foreword

Astronomer, former Project Blue Book consultant, interviewed the witnesses

CUFOS astronomer who interviewed Coyne

Member of the Project Hessdalen advisory committee

Astronomer and co-author of Night Siege
