 "An unidentified
flying object (UFO)
is an object or phenomenon seen in the sky but not yet identified or
explained. The term was coined when United
States Air Force (USAF)
investigations into flying
saucers found
too broad a range of shapes reported to consider them all saucers or
discs. UFOs
are also known as unidentified
aerial phenomena or unidentified
anomalous phenomena (UAPs). Upon
investigation, most UFOs are identified
as known objects or atmospheric phenomena,
while a small number remain unexplained."
Source
Wikipedia |
