UFO sightings refer to reports of unidentified flying objects observed in the sky. These sightings can involve various shapes, sizes, and behaviors that do not match known aircraft or natural phenomena. Many people have claimed to see these objects, leading to widespread interest and speculation about their origins, including the possibility of extraterrestrial life. Governments and organizations have investigated UFO sightings over the years, with some notable cases gaining significant attention. The U.S. government has conducted studies, such as the Project Blue Book, to analyze these reports. While many sightings are eventually explained as misidentified aircraft, weather balloons, or other phenomena, some remain unexplained, fueling ongoing curiosity and debate.