alien(The proverbial ET hypothesis was even raised at Sunday's press conference and, when asked if the objects could be alien, Gen. Glen D. VanHerck raised eyebrows by replying that "I haven't ruled out anything at this point."coasttocoastam.comART Vancouver)
ETH(extraterrestrial hypothesis: The extraterrestrial hypothesis (ETH) proposes that some unidentified flying objects (UFOs) are best explained as being physical spacecraft occupied by extraterrestrial life or non-human alien.wikipedia.orgYuri Ginsburg)
METI(Messaging Extraterrestrial Intelligence; попытки передачи межзвёздных посланий от человечества вероятным разумным существам за пределами Солнечной системы AllaR)
