Levelland, Texas, Vehicle Electromagnetic Interference Wave

Over two nights in early November 1957, at least fifteen motorists near Levelland, Texas reported their vehicles' engines stalling and headlights failing in the presence of a large, luminous, egg-shaped object. Levelland police officers and the sheriff investigated and documented the reports. Project Blue Book sent a single investigator who spent one day on site and attributed the sightings to ball lightning and wet electrical systems, though several researchers noted there was no rain that evening. The concentration of independent electromagnetic interference reports from unrelated witnesses made it one of the most significant physical-effect cases of the 1950s.