26 years later, the Phoenix Lights remain one of America's biggest UFO events

After a slew of high-altitude balloons drifted over from China, America has been bombarding top military officials with calls about unexplainable sightings in the sky. But nothing comes close to the Phoenix Lights. The event started in Nevada when a Henderson resident reportedly saw a V-shaped object with six lights on its leading edge pass overhead, flying southeast toward Arizona.