Anomalous Luminous Phenomena (Third Report) - December 30, 1948

This document is a collection of investigative reports and correspondence concerning 'anomalous luminous phenomena' or 'green fireballs' observed in New Mexico during December 1948. The primary report, dated December 30, 1948, from Dr. Lincoln LaPaz of the Institute of Meteoritics to the Office of Special Investigations (OSI), details a specific incident on December 12, 1948, near Starvation Peak. Dr. LaPaz, who was an eyewitness, describes a brilliant green fireball that moved horizontally at a low altitude before fragmenting. He explicitly concludes that this phenomenon was 'definitely non-meteoric' based on its trajectory, lack of associated noise, and vivid color. The archive includes multiple incident summary sheets (e.g., Incident 223, 224, 227, 241) documenting various sightings by military personnel, pilots, and security inspectors. These reports consistently describe green, fireball-like objects that often appear to move horizontally or arch downward, sometimes fragmenting in mid-air. The reports highlight a significant discrepancy between these observations and the behavior of genuine meteors, which typically enter the atmosphere at much higher altitudes and steeper angles. The documents also reflect the military's concern regarding these sightings, leading to inquiries at various air bases (Kirtland, Holloman, Walker) to determine if the phenomena were related to military maneuvers, such as the use of flares. The consensus among the investigators, particularly Dr. LaPaz, is that these incidents represent a recurring, anomalous pattern that warrants further scientific study, potentially involving high-velocity projectile research or other advanced experimental activity, rather than being dismissed as natural meteoric events.