UFOs A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site nocturnal light (type of UFO) Image from footage of a UFO taken by a BBC cameraman in July 2003 over Hanbury, Worcestershire, England. For more, go here (BBC) One of the 6 categories of unidentified flying object (UFO) in the classification scheme devised by J. Allen Hynek in the 1950s. Defined as any light or lights in the night sky that cannot be explained in terms of aircraft, astronomical objects, or any other familiar luminous source. Related category    • UFOs Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP