Phoenix Arizona has had numerous UFO sightings over the past 150 years, most notably The Phoenix Lights. The incident originated on March 13, 1997 over Henderson, Nevada and passed over Arizona to Mexican state of Sonora. The phenomena was seen by over 30,000 people from the Nevada state line through Phoenix and to the edge of Tucson.
Two distinct events were witnessed in the incident: a triangular formation of lights, and a series of stationary lights seen in the Phoenix area.
The United States Air Force claims the formation of lights were flares dropped by A-10 Warthog aircraft, however eye witness accounts claim the statewide sighting was unknown aircraft.