“These spacecraft can perform maneuvers that, on earth, are possible only for rays of light. They fly at speeds of many thousands of miles an hour, can reverse direction instantaneously at any speed, ascend or descend vertically, and hover motionless in the air. They accomplish these feats perhaps by using the power of cosmic rays and by generating and manipulating artificial gravitational fields, which they could also use to prevent the transmission of sound waves and to become invisible. “The extraterrestrial visitors may be explorers sent to study the earth, descendants of a race living thousands of light-years away from the solar system. They may be the ancestors of the human race, which itself is a remnant of a colony established on earth thousands of years ago and then abandoned. More than 300,000 years ago the inhabitants of earth had found the secret of space travel, and human beings mapped the earth by an aerial survey at least 5000 years ago. It is also possible that these craft come not from space but from time; they may be earthmen of the future who have traveled backward through time to explore their own past. “The purpose of these visitors is still unknown. They shun close contact with human beings, rarely if ever land their ships, and never allow close-up photographs, perhaps because they are afraid of human savagery or are afraid of starting a panic. Nevertheless they attempt to signal to earthmen in various ways: they have caused the production of gigantic letters of the alphabet [U and Z] on earth radarscopes; from a material that radiates light they have built an enormous letter W, spanning more than 1000 miles on the surface of Mars; they have sent out wireless signals in Morse code to represent the letter S. They may occasionally abduct earthmen in order to use them as language teachers. “Although these visitors are probably not hostile to human beings, they often manifest their presence in destructive ways. They cause many airplane crashes; seize and carry off ships, human beings, and airplanes; destroy flocks of birds; interfere with the operation of radio, TV, gasoline and electric motors; pelt the earth with rocks, metal, and strange organic substances; create loud noises and detonations; damage the windshields of cars; set fire to highways; hurl various types of missiles; drop chunks of ice; cause storms; and cause radioactive rain. “One of the most peculiar features of saucerdom is the role played by government officials and scientists who, knowing the space visitors are real, yet deny their existence and unite in a gigantic conspiracy to deceive the public.” * * * * *