WebSep 5, 2024 · Nasa’s unofficial working definition is “a self-sustaining chemical system capable of Darwinian evolution”. “Nasa needs a definition of life so it knows how to build detectors and what ... WebFeb 18, 2024 · extraterrestrial life, life that may exist or may have existed in the universe outside of Earth. The search for extraterrestrial life encompasses many fundamental …
Extraterrestrial Definition & Meaning YourDictionary
Webextraterrestrial [ ĕk′strə-tə-rĕs ′trē-əl ] Originating, located, or occurring outside the Earth or its atmosphere. The American Heritage® Science Dictionary Copyright © 2011. … WebGreys have been the predominant extraterrestrial beings of alleged alien contact since the 1960s. [5] Hopkinsville goblin [6] [7] [8] Small, greenish-silver humanoids. [9] Little green men [10] Diminutive green humanoids. Even though a few abductions have referred to green skin, no report has ever involved anything that would fit the classic ... is fish bad for pregnant women
EXTRATERRESTRIAL definition Cambridge English Dictionary
WebExtra-terrestrial synonyms, Extra-terrestrial pronunciation, Extra-terrestrial translation, English dictionary definition of Extra-terrestrial. adj. Originating, located, or occurring outside Earth or its atmosphere: intelligent extraterrestrial life. n. Webextraterrestrial 1 of 2 adjective ex· tra· ter· res· tri· al ˌek-strə-tə-ˈre-strē-əl -ˈres-chəl, -ˈresh-chəl : originating, existing, or occurring outside the earth or its atmosphere extraterrestrial life extraterrestrial 2 of 2 noun : a being from another world : an … Webextraterrestrial being - a form of life assumed to exist outside the Earth or its atmosphere extraterrestrial , alien hypothetical creature - a creature that has not been … is fish bad for male cats