Michigan’s Swamp Gas: The 1966 Flap That Made a Phrase and Broke Trust

A marsh in Michigan, similar to the swampy ground near Dexter where the 1966 sightings took place

About 4 min readIn March 1966, hundreds of people in southern Michigan — sheriff’s deputies, farmers and 87 college students — reported strange lights over the marshes. The Air Force sent Dr. J. Allen Hynek, who blamed swamp gas. The phrase became a joke, and the backlash helped change UFO investigation in America.