Scientific_american_presents

UFO phenomena entered American consciousness at the beginning of the Cold War, when reports from astonished witnesses of encounters with unknown aerial objects captured the attention of the United States military and the imagination of the press and the public. But when UFOs appeared not to be hostile, and when some scientists pronounced the sightings to be of natural meteorological phenomena misidentified due to "Cold War jitters," military interest declined sharply and, with it, further overt scientific interest.