On December 29, 1980, Betty Cash, Vickie Landrum, and Colby Landrum reported encountering a massive diamond-shaped UFO on a rural road near Dayton, Texas. The craft emitted intense heat that caused skin burns, eye irritation, and nausea—symptoms consistent with radiation exposure. Witnesses also described dozens of military helicopters escorting the object, though the U.S. government denied involvement. The case remains one of America’s most famous and disturbing UFO encounters, often cited as evidence of secret military projects or extraterrestrial craft.