On November 7, 2006, around 4:15 p.m. local time, a group of United Airlines employees at Chicago’s O’Hare International Airport reported seeing a mysterious unidentified flying object (UFO) hovering over Gate C17 in the United terminal. The object was described as a metallic, disc-shaped craft, dark gray in color, about 6 to 24 feet in diameter, and it was completely silent. After several minutes of hovering below a low cloud ceiling, the disc abruptly shot upward at high velocity, punching a crisp circular hole through the clouds before disappearing―an occurrence witnesses described as “like somebody punched a hole in the sky”. Despite multiple credible eyewitness accounts, including airport pilots, mechanics, and managers, the Federal Aviation Administration (FAA) initially denied any knowledge of the incident and declined to investigate, later suggesting that the sighting was caused by a weather phenomenon. To this day, the O’Hare airport UFO encounter remains unexplained, and it is often cited as one of the most notable UFO sightings of the 21st century, raising questions about aviation safety and how such incidents are handled by authorities.