The meaning of EXTRATERRESTRIAL is originating, existing, or occurring outside the earth or its atmosphere. How to use extraterrestrial in a sentence.
fromWiktionary, Creative Commons Attribution/Share-Alike License. adjectiveOriginating from outside of theEarth'satmosphere, fromspace, or from anotherplanet;aliento Earth or itsenvironment. nounA being originating from outside of theEarth'satmosphere, fromspace, or from anotherplanet; analien ...
extraterrestrial meaning, definition, what is extraterrestrial: a creature that people think may exist o...: Learn more.
Definition of Life extraterrestriallife is because there is strong evidence that all life on this planet has a common origin. Chemically and genetically there are evolutionary links between all organisms that more or less reflect the more traditional attempts at linking them. This means, of course,...
On the other hand, if the discovered ET life operates using vastly different biochemistries—i.e., xeno-biochemistry that includes non-biomolecular compounds (see definition in Table 1)—we can argue that contingency may have played a role. This would indicate that ET life did not emerge in ...