What happened
A flat object like a pinhead made three full right turns in nine seconds, cut sharp right and left turns, stopped, sped up again and finally climbed straight up out of sight after about a minute.
All cases / From orbit / Sonoma pinhead
January 10, 1953, about 4 p.m.
Sonoma, California, USA
"flat object, like a pinhead"Shape words from the Project Blue Book summary
A flat object like a pinhead made three full right turns in nine seconds, cut sharp right and left turns, stopped, sped up again and finally climbed straight up out of sight after about a minute.
Retired Col. Robert McNab and Mr. Hunter of the Federal Security Agency
No explanation has been found.
Filed by Project Blue Book as unidentified.