NASA Astronaut and Russian Cosmonaut Facts NASA Astronaut and Russian Cosmonaut Facts NASA Astronaut and Russian Cosmonaut FactsNASA was formed in 1958 and from the very start a number of it's astronauts and test pilots testified to sighting UFOs or craft of undetermined origin. Initially Joseph Walker was the first to announce a sighting -- he told the National Conference on the Peaceful Uses of Space Research in 1962 that he had an aerial encounter with two disc-shaped objects the previous month. He had actually filmed the encounter.In April 1962, NASA pilot, Joseph Walker, filmed five cylindrical and disc-shaped objects from his X-15 aircraft. Another test pilot reported an incident involving a formation of UFOs whilst flying at 314,000 feet. NASA refused to reveal any evidence that might substantiate the pilots' claims -- photographs or films were never released. In April 1964, two radar technicians watched UFOs following an unmanned Gemini capsule. In 1965, the FBI received information from a confidential source that an informant at NASA was secretly divulging information on UFOs to two UFO researchers in Pittsburgh. According to FBI files: "The source believes that the informant may be classified and had actually seen a film showing a missile separating and a UFO appearing on the screen. "The informant advised prior to the flight of Gemini 4 - watch out for something interesting because the spaceship had devices aboard to detect UFOs." The FBI files infer that NASA was (is) withholding filmed evidence of UFOs, to which the general public is being denied access and the remarks about Gemini 4 is of special interest because James McDivitt, a pilot with Gemini 4, confirmed that during the mission he did see an "unidentified object."