UFO is an abbreviation fo ‘unidentified flying object’. To the military forces the term means something in the sky that can be seen but not recognized, rather than something ‘extraterrestrial’.
1952 was the year America caught flying-saucer fever So when a rash of strange sightings was reported in the skies over Washington D.C. that summer, the press and the public demanded answers. Were these unexplained radar blips, crafts that in some cases outran jets, part of a nuclear-armed Soviet invasion—a very real threat at the height of the Red Scare? Or were they evidence of something far more mysterious?
In 1979 Maurice Chatelain, former chief of NASA Communications Systems confirmed that Armstrong had indeed reported seeing two UFOs on the rim of a crater. Chatelain believes that some UFOs may come from our own solar system, specifically Titan. Apollo and Gemini flights were followed, both at a distance and sometimes also quite closely, by space vehicles of extraterrestrial origin - flying saucers, or UFOs.
While the general public has been fascinated with UFOs for decades, our governments, scientists and media, have essentially declared that of all the UFO sightings are a result of weather phenomenon or human actions. In most cases UFOs are off-limits to serious scientific study and rational discussion, which unfortunately leaves the topic in the domain of fringe and pseudoscientists, many of whom clutter the field with conspiracy theories and wild speculation.