UFO encounters refer to sightings of unidentified flying objects that cannot be easily explained. These incidents often involve people observing strange lights or shapes in the sky, leading to speculation about their origin. Some reports suggest that these objects may be extraterrestrial spacecraft, while others attribute them to natural phenomena or human-made aircraft. Many UFO encounters have been documented over the years, with notable cases like the Roswell Incident in 1947 and the Phoenix Lights in 1997. Investigations by organizations such as the U.S. Air Force and various civilian groups aim to understand these phenomena and determine their true nature.