USAF · 1947 to 1969
Project Blue Book Case Files
The U.S. Air Force's 22-year investigation into reported UFO incidents, drawn from the National Archives. Each case below has a journalistic summary written from the original file. Use the search box to find a place or date, or filter by state and year.
6 cases in CO from 1955 · page 1 of 1
Colorado Springs, CO
1955 · unidentifiedOn March 22, 1955, in Colorado Springs, Colorado, a civilian reported seeing a circular, bright purple object about the size of a baseball. The object descended to the ground with…
Colorado Springs, CO
1955 · unidentifiedOn May 29, 1955, both civilian and military witnesses in Colorado Springs, Colorado reported one object. It was reported by phone to the duty officer at the headquarters of an Air…
Colorado Springs, and Denver, CO
1955 · unidentifiedOn December 11, 1955, over Colorado Springs and Denver, Colorado, three people saw one object in the sky. The Greenwich time was 1330Z. The witnesses included military and civilian…
Laveta, CO
1955 · unidentifiedOn November 25, 1955, near La Veta, Colorado, a man saw a strange object in the daytime sky. The time was about 1030 (10:30 a.m.). The sky was clear with an unlimited ceiling and n…
Manitou Springs, CO
1955 · unidentifiedOn April 27, 1955, a civilian woman in Manitou Springs, Colorado saw a shining object. She watched it from the back porch of her house. The object appeared to hover over nearby hil…
Puebloe, CO
1955 · unidentifiedOn December 1, 1955, near Pueblo, Colorado, a man and his wife saw a strange object while driving about 29 miles south of Pueblo. The time was about 1500 (3:00 p.m.). There were no…
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