Dr. Christopher “Kit” Green is best known in UAP history as a neuroscientist and former CIA analyst who spent decades examining anomalous aerospace reports, unusual injury cases, and alleged physical materials connected to unidentified aerial phenomena. He earned a Ph.D. in neurophysiology from the University of Michigan in 1969 and later completed his M.D. at the University of California, San Francisco, in 1976 while already working in national security roles. His scientific training in brain function and medical imaging shaped the way he would approach anomalous cases for the rest of his career. From 1969 to 1985, Green worked at the CIA in science and technology analysis. During the 1970s and early 1980s, he served as the informal custodian of what insiders called the CIA’s “weird desk,” reviewing raw reports of unusual aerospace events and preparing briefings for senior leadership. In later interviews, he stated that he briefed CIA Directors Richard Helms and William Colby on UFO-related matters. He received the CIA’s National Intelligence Medal for classified work conducted between 1979 and 1983. After leaving government service, Green moved into corporate research at General Motors, eventually holding senior technology policy and Asia-Pacific roles. His corporate and academic positions matter mainly because they sustained his access to advanced research environments while he continued studying anomalous reports privately and through advisory channels. Green’s most publicly documented UAP contribution is a Defense Intelligence Reference Document written under the Advanced Aerospace Weapon System Applications Program contract. The paper, commonly cited under a shortened clinical title, examines medical signs, symptoms, and biophysical injury patterns associated with alleged exposure to anomalous aerospace systems. It analyzes roughly forty detailed medical cases, references hundreds more events, and draws on historical catalogs of reported physiological effects. The document focuses on neurological damage, radiation-like burns, demyelination, and injury patterns consistent with high-powered non-ionizing electromagnetic or microwave exposure. In public interviews during the 2020s, Green stated that he reviewed hundreds of patients over many years, including military and intelligence personnel. He has emphasized that many injury patterns are consistent with advanced electromagnetic systems and that some technologies involved may already exist within classified terrestrial programs. His approach centers on mechanism: what energy source, what exposure pathway, what measurable tissue damage. Another major thread in his work concerns alleged UAP debris and so-called metamaterials. Green has collaborated with Hal Puthoff and Jacques Vallée in examining fragments reported to originate from anomalous incidents. Discussions of these samples reference unusual isotopic ratios, layered structures, or manufacturing characteristics that are difficult to attribute to conventional processes. The goal of analysis has been to determine whether the materials represent advanced terrestrial engineering, experimental aerospace technology, or something requiring new categorization within materials science. Green’s association with Jacques Vallée places him within a long-running network sometimes described as the “invisible college,” a loose group of scientists and intelligence veterans who continued studying UFO data outside formal public programs. Vallée’s control system theory proposes that the phenomenon may act as an adaptive system influencing human perception and culture. When discussions turn to “high strangeness,” Green consistently reframes the issue toward physiology and evidence. Reports of perceptual distortion, cognitive shifts, or unusual aftereffects are treated as data requiring imaging, lab work, and structured analysis. His work stays anchored in tissue damage, neuroimaging findings, and exposure models. Across decades of shifting public attitudes toward UAPs, Green’s role has remained consistent: analyze the data, document the injuries, examine the materials, and evaluate whether advanced aerospace systems—human or otherwise—can account for the evidence. His significance in the UFO field lies in that technical posture: a medically trained intelligence analyst applying forensic methods to some of the most controversial cases in modern aerospace history.