Alien

An alien, in general knowledge, refers to a being from a different planet or celestial body, often associated with science fiction. While the term can also describe a foreign national in legal contexts, it predominantly evokes images of extraterrestrial life—intelligent or non-intelligent organisms that may exist beyond Earth. The idea has captured public imagination, inspiring countless books, movies, and scientific inquiries into the possibility of life in the universe. Despite extensive research, no definitive evidence of extraterrestrial life has been found, leading to ongoing debate and speculation about what forms such life might take.