A new and mysterious craft, described by Americans as a "flying saucer" (and later, more accurately, by Italians as a "disco volante") was first sighted in 1947. It captured the public imagination with its high speed and manoeuvrability and because it was completely unlike any man-made aircraft. Wanting to believe that there was 'life out there', people spent more time searching the sky, and began to see other inexplicable shapes.
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