It Started With The Arnold Sighting

America has seemingly always had a fascination with unidentified flying objects, which for years we referred to as UFOs. Over the years, there has been an odd mix of reports running the gamut from ordinary citizens to fighter pilots and even astronauts. One of the earlier events in the UFO craze is the Kenneth Arnold sighting, which can be traced back to 1947. Pilot Kenneth Arnold reported seeing nine unusual objects flying near Mount Rainier in Washington State. Arnold described their movements as “like a saucer if you skip it across the water.” This led to the popularization of the term “flying saucer.”

Arnold UFO report
Kenneth Arnold’s report to Army Air Forces Intelligence from 1947. Image Credit: Wikimedia Commons

Then There Was The Roswell Incident

That same year, 1947, saw the Roswell Incident. Just one month after Arnold’s report, the citizens of Roswell, New Mexico, saw something crash on a ranch. It was initially reported as a “flying saucer” by the local Air Force base, which later changed its story to say it was a weather balloon. The original story, however, stuck, and to this day, Roswell, New Mexico, is synonymous with UFOs and little green (or gray) men.

Roswell record
The Roswell Daily Record as published on July 8, 1947. It states clearly that “the intelligence office of the 509th Bombardment Group at Roswell Army Air Field announced at noon today that the field has come into possession of a flying saucer.” Image Credit: Wikimedia Commons.

Project Blue Book

Project Blue Book was the United States Air Force’s longest-running program dedicated to investigating UFO sightings. From 1952 to 1969, it operated out of Wright-Patterson Air Force Base in Dayton, Ohio. The project was part of a broader effort to understand unidentified flying objects, following two earlier initiatives: Project Sign (1947–1949) and Project Grudge (1949–1952). Project Blue Book had two main goals: to determine whether UFOs posed a threat to national security and to analyze UFO-related data through scientific methods.

During its tenure, Project Blue Book investigated an impressive 12,618 UFO reports. Most of these sightings were explained as misidentifications of natural phenomena, such as clouds, stars, or conventional aircraft. However, 701 cases remained classified as unexplained, even after detailed analysis. Other explanations for sightings included human error, hoaxes, and mistaken identification of military or civilian aircraft.

The project emphasized a systematic approach to its investigations. Standardized questionnaires were developed to gather consistent data, and investigators were authorized to interview military personnel who had witnessed UFOs. To lend scientific credibility to its work, Project Blue Book employed Dr. J. Allen Hynek, an astronomer, as its scientific consultant.

Despite its methodical framework, Project Blue Book was often surrounded by controversy. Critics argued that investigators were pressured to dismiss or downplay extraterrestrial explanations. Others felt the project lacked rigor and was more focused on debunking UFO sightings to reduce public interest rather than seeking the truth.

Project Blue Book officially ended on December 17, 1969, following the release of a report from the University of Colorado. This report concluded that UFOs posed no threat to national security, offered no evidence of advanced unknown technology, and provided no proof of extraterrestrial origin. The project’s declassified records are now housed at the National Archives in Washington, D.C., where they are accessible to the public.

In recent years, interest in UFOs has surged again. The Department of Defense established the Unidentified Aerial Phenomena Task Force in 2020 to continue investigating these mysterious sightings, signaling that the U.S. government remains invested in understanding what might still be out there.