Aliens & Abduction
Extraterrestrial life is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an "extraterrestrial" or "alien" (or, to avoid confusion with the legal sense of "alien", a "space alien"). These as yet hypothetical forms of life range from simple bacteria-like organisms to beings far more complex than humans. The possibility that viruses might exist extraterrestrially has also been proposed.
The development and testing of hypotheses on extraterrestrial life is known as "exobiology" or "astrobiology", although astrobiology also considers Earth-based life in its astronomical context. Scientists at the National Institutes of Health reported studies that life in the universe may have begun "9.7±2.5 billion years ago", billions of years before the Earth was formed, based on extrapolating the "genetic complexity of organisms" [from "major phylogenetic lineages"] to earlier times. Many scientists consider extraterrestrial life to be plausible, but there is no direct evidence of its existence. Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial life, from radios used to detect possible extraterrestrial signals, to telescopes used to search for potentially habitable extrasolar planets. It has also played a major role in works of science fiction.
The terms alien abduction or abduction phenomenon describe "subjectively real memories of being taken secretly against one's will by apparently nonhuman entities and subjected to complex physical and psychological procedures". People claiming to have been abducted are usually called "abductees" or "experiencers".
Due to a paucity of objective physical evidence, most scientists and mental health professionals dismiss the phenomenon as "deception, suggestibility (fantasy-proneness, hypnotizability, false memory syndrome), personality, sleep paralysis, psychopathology, psychodynamics and environmental factors".
Typical claims involve being subjected to a forced medical examination that emphasizes their reproductive system. Abductees sometimes claim to have been warned against environmental abuse and the dangers of nuclear weapons. While many of these claimed encounters are described as terrifying, some have been viewed as pleasurable or transformative.
The first alleged alien abduction claim to be widely publicized was the Betty and Barney Hill abduction in 1961.Reports of the abduction phenomenon have been made around the world, but are most common in English speaking countries, especially the United States.The contents of the abduction narrative often seem to vary with the home culture of the alleged abductee.
Alien abductions have been the subject of conspiracy theories and science fiction storylines (notably The X-Files) that have speculated on stealth technology required if the phenomenon were real, the motivations for secrecy, and that alien implants could be a possible form of physical evidence.
Source : Wikipedia
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