What was the mysterious solid object that struck a Comet jetliner in flight over India? - Has modern science already communicated with intelligent beings from outer space? - Why have UFO's undergone drastic design changes in the past sixty years? - What was the thing that followed a Polaris missile in 1961 and caused the radar tracking gear to lock on it instead of the missile? How could British television viewers pick up signals form a Texas TV station that had gone out of business three years earlier? What was the strange substance that dribbled from a crippled disc over Brazil in 1954? What was the reason for the mysterious power blackouts of the Northwest and the Southwest in the fall of 1965? What will the next UFO phase be and what are its unprecedented implications for the human race? FLYING SAUCERS -- SERIOUS BUSINESS The most revealing and astonishing story on UFO's ever to appear in print!