Extraterrestrial life - Wikipedia Extraterrestrial life, or alien life (colloquially aliens), is life that originates from another world rather than on Earth No extraterrestrial life has yet been scientifically or conclusively detected
Extraterrestrial life | Definition, SETI, Facts | Britannica In this respect the discovery of even a single example of extraterrestrial life, no matter how elementary in form or substance, would represent a fundamental revolution in science
What Is an Extraterrestrial? A Scientific Explanation The term “extraterrestrial” refers to any life originating and existing outside of Earth Its etymology combines Latin “extra” (outside) and “terra” (Earth) This broad definition encompasses possibilities from simple microbes to complex, intelligent beings
Are Aliens Already Living Among Us in Secret Despite decades of research, including the Search for Extraterrestrial Intelligence (SETI) and the observation of unusual astronomical phenomena, no definitive proof has been found that intelligent extraterrestrials have visited Earth
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