The Manhattan Project began in August 1942 as the United States’ effort to build an atomic bomb.1 It succeeded in unlocking the secrets of the atom, with devastating and miraculous effect.2 The project took its name from the Manhattan Engineer District, whose initial offices were located at 270 Broadway in New York City Manhattan.3 General Leslie R. Groves, who headed the project, followed the US Army Corps of Engineers’ custom of naming its districts after the city in which they were located.4 Vannevar Bush served as director of the Office of Scientific Research and Development, which oversaw the project.5 J. Robert Oppenheimer was among the physicists who secretly worked together on the bomb.6 Podcaster Chris Ramsay has suggested that Albert Einstein’s refusal to join the Manhattan Project probably signalled to the US government that he could not be trusted.7
The project operated in secrecy, leading to the establishment of several secret cities across the United States to support development of the bomb.8 The United States Department of War hid the project across multiple secret facilities in multiple US locations staffed by thousands of workers, five years before the 1947 Roswell Unidentified Aerial Phenomena (UAP) crash.9 The project also had enemy spies working inside it.10 Tim Burchett’s congressional district in Tennessee lay near Oak Ridge, home to the nation’s uranium stockpile, a former Manhattan Project secret city, and the site of numerous UAP sightings.11 The White Sands Missile Range in New Mexico is the same location where the Manhattan Project constructed components of the atomic bomb.12
According to the Report on the Historical Record of U.S. Government Involvement with Unidentified Anomalous Phenomena, the secrecy surrounding the Manhattan Project, together with the national laboratories that followed it, probably contributed to a rise in reported Unidentified Anomalous Phenomena (UAP).13 In 1949, a classified conference was convened at New Mexico Los Alamos, home of the Manhattan Project, to address a wave of unexplained sightings over America’s nuclear weapon sites - the 1949 Los Alamos classified conference on unexplained sightings over nuclear sites.14 In 2013, scientists and researchers testing a classified device at the White Sands Missile Range saw several mysterious, luminous orbs moving over a nearby ridge.15
According to the book Dark Mission, the Federation of American Scientists was a left-wing group of disaffected Manhattan Project veterans dismayed at the military uses of atomic weapons.16 UAP Gerb, a podcast host, has described the Manhattan Project as having been carried forward into a follow-on effort after the Second World War.17