Flying Saucers from Outer Space
Non-fiction book by ex-military officer Donald Keyhoe about unidentified flying objects which implies an extraterrestrial origin.
"Flying Saucers from Outer Space" by Donald Keyhoe, a retired Marine Corps Major and early ufologist, presented a compelling argument for the existence of extraterrestrial spacecraft, or "flying saucers." Published in the 1950s, the book was a seminal work that compiles various accounts of UFO sightings and encounters, including those reported by credible military and commercial pilots.
Keyhoe scrutinized these encounters with a critical eye and contrasts them against official explanations, often finding the latter wanting. His methodical approach seeked to legitimize the study of UFOs by applying a disciplined, investigative lens. Keyhoe posited that these unidentified flying objects suggest a far more advanced technology than was known on Earth, implying an extraterrestrial origin. The book was later adapted into a 1956 film titled, "Earth vs. the Flying Saucers."
