The following events happened on this day of April 27:
- April 27 and May 29, 1950. Cigar-shaped UFO were photographed with Askania theodolites at Holloman AFB. Witness on record, electronics engineer Cliff Booth.
Josef Allen Hynek (May 1, 1910 – April 27, 1986) was an American astronomer, professor, and ufologist. He is perhaps best remembered for his UFO research. Hynek acted as scientific advisor to UFO studies undertaken by the U.S. Air Force under three consecutive projects: Project Sign (1947–1949), Project Grudge (1949–1952), and Project Blue Book (1952–1969). In later years he conducted his own independent UFO research, developing the "Close Encounter" classification system.
- ↑ http://www.project1947.com/folio/pbb_report5-2.htm
- ↑ http://www.project1947.com/folio/apro_holloman.htm
- ↑ "The J. Allen Hynek Center for UFO Studies". http://www.cufos.org/org.html. Retrieved 2008-02-10.