What happened
Over five minutes the airmen saw two slender rectangles standing upright, low on the horizon. Higher up, two dark ovals lit in dark blue flew past.
All cases / Rectangles / Cheyenne rectangles
May 23, 1955, midnight
Cheyenne, Wyoming, USA
"slender vertical rectangles"The witness's own shape words
Over five minutes the airmen saw two slender rectangles standing upright, low on the horizon. Higher up, two dark ovals lit in dark blue flew past.
USAF Airman Basic I. J. Shapiro and E. C. Ingber
Filed by Project Blue Book as unknown.