The “Phoenix Lights” refers to a documented UFO sighting which occurred on Thursday, March 13, 1997, over the skies of Arizona, and some reports even in Nevada and Mexico. During the hours of about 8 pm and 10 pm, a string of different light formations were witnessed by thousands of people. The descriptions varied but have been gathered into two “events”.
The first “event” involved a formation of lights which appeared over northern Arizona at 8:15 pm and then slowly moved south down the state. This formation, described as resembling the letter V, eventually ended up in Tucson around 8:45 pm. It has not been established what those first lights were; some witnesses, such as an amateur astronomer observing through a telescope, claim it was a formation of airplanes. But both military and civilian airlines deny any aircraft formations in those areas during that time frame.
The second event began at approximately 10 pm in the skies over Phoenix. Here, a formation of nine lights appeared to float just over the city. As seen in some of the most popular footage, the lights appeared one by one and then subsequently disappeared one by one. Thousands of witnesses claim to have seen a solid object which the lights were attached to. The U.S. Air Force claims responsibility for this incident, explaining that the lights were actually slow falling flares, which burned extensively, dropped by four A-10 Warthog aircraft during a training exercise.
UFO enthusiasts continue to question the Phoenix Lights, regardless of the explanations offered by military and such. The events are still remembered and widely speculated even today. The footage, specifically the nine Phoenix lights, which was captured by many video cameras, has become one of the most referenced incidents when discussing UFO sightings in the recent past.