Aliens by The Internal Expression

The Aliens (also known as a Xenomorph XX121, Internecivus raptus, or simply the alien or the creature) is an extraterrestrial species. Extraterrestrial intelligence (ETI) refers to hypothetical intelligent extraterrestrial life. No such life has ever been observed to exist. The question of whether other inhabited worlds might exist has been debated since ancient times. The modern form of the concept emerged when the Copernican Revolution demonstrated that the Earth was a planet revolving around the Sun, and other planets were, conversely, other worlds. The question of whether other inhabited planets or moons exist was a natural consequence of this new understanding. It has become one of the most speculative questions in science and is a central theme of science fiction and popular culture. Sources. From Extraterrestrial intelligence Wikipedia, the free encyclopedia.