“ ‘Saucer’ Reported Over Atom Lab”, 3 August 1952
(The Pittsburgh Press, Pennsylvania)
Several U.S. Air Force officers sighted a UFO over the sands near the atomic bomb laboratories in Los Alamos, New Mexico on 29 July 1952, the Pittsburgh Press reports:
http://news.google.com/newspapers?id=Oj0dAAAAIBAJ&sjid=lU0EAAAAIBAJ&pg=1499,703859
The UFO was sighted for more than thirty minutes. And it made a 360-degree turn before disappearing, according to the U.S. Air Force.