Science: Closing the Blue Book

With almost as much attentiveness as it gives to the comings and goings of its own planes, the U.S. Air Force has carefully logged every unidentified flying object that has been reported in the American skies during the past 22 years. During that time, Project Blue Book, as the operation was called, looked into a total of 12,618 UFO sightings. Yet lately, the flying-saucer business has fallen on hard times. Only 146 UFO sightings have been reported to the Air Force so far this year v. a peak of 1,501 in 1952. The decline is due partly to the Condon...

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