US astronaut Gordon Cooper's letter to the United Nations concerning UFOs, November 9, 1978

On November 9, 1978, one of the most fascinating and detailed documents in the history of modern UFO research was dispatched: an official letter to the United Nations Committee of Ambassadors from Leroy Gordon Cooper. As one of the original "Mercury Seven" astronauts and an American national hero, Cooper—the first American to sleep in space and the pilot of the *Faith 7* mission—was no ordinary conspiracy theorist. He was a highly skilled test pilot and aerospace engineer who decided to break his long-standing silence. In his dramatic letter, Cooper urged the UN to establish a neutral, international research body to investigate the phenomenon of unidentified flying objects, emphasizing that the universe is far too vast for us to assume we are alone. Cooper did not settle for a theoretical call to action; he grounded his claims in his own professional experience. Throughout his career, he reported several direct encounters with technological craft that could not be explained by the known science of the era. The most famous incident occurred in 1951 while he was flying over West Germany; he observed a formation of circular metallic objects flying at high altitudes and speeds that far exceeded the capabilities of any jet aircraft at the time. Testimony from a man of his stature—who held a high-level security clearance and sat at the core of NASA—lent unprecedented legitimacy to a subject previously dismissed as science fiction or delusion. At the heart of his letter was the conviction that world governments were withholding vital information from the public, fearing mass panic or citing national security concerns. Cooper asserted that the United States and other nations possessed physical evidence and photographic records of extraterrestrial craft, and that the time had come for a controlled, scientific disclosure. He believed that international cooperation under the auspices of the UN would allow humanity to prepare for an encounter with other civilizations, rather than continuing to deny the existence of phenomena occurring in our skies every single day. Gordon Cooper’s letter remains a key document for researchers and historians today, representing the moment the space establishment began to challenge the official narrative. The civic courage of a man who risked his professional reputation to advance the truth as he saw it serves as a reminder that the greatest mystery of the 20th century still awaits a resolution. His testimony remains a cornerstone of the public debate on extraterrestrials, backed by some of the most highly trained eyes to ever gaze at the stars.

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