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Xenoarchaeology, a branch of xenology dealing with extraterrestrial cultures, is a hypothetical form of archaeology that exists mainly in works of science fiction. The field is concerned with the study of the material remains to reconstruct and interpret past life-ways of alien civilizations.
The science of extraterrestrial life is known as astrobiology. Speculation about the possibility of inhabited worlds beyond Earth dates back to antiquity. Early Christian writers discussed the idea of a "plurality of worlds" as proposed by earlier thinkers such as Democritus ; Augustine references Epicurus 's idea of innumerable worlds ...
All those sciences are collectively studied under the umbrella science of astrobiology. [26] Most knowledge of astronomy is relevant in some way for the discussion of extraterrestrial life, but there are three main tenets. One, that the universe is incredibly vast and old. Second, the elements that make up life on Earth are plentiful.
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. [4] An alternative name for it is "Extraterrestrial Technological Instantiations" (ETI).
The search for extraterrestrial intelligence (SETI) is a collective term for scientific searches for intelligent extraterrestrial life. Methods include monitoring electromagnetic radiation for signs of transmissions from civilizations on other planets, [ 1 ] [ 2 ] [ 3 ] optical observation, and the search for physical artifacts.
[5] A Daily Kos book reviewer writes that Interstellar "provides a realistic and practical blueprint for how a [human and alien life] interaction might actually occur, resetting our cultural understanding and expectation of what it means to identify an extraterrestrial object. ... [the author] also lays out the profound implications of becoming ...
Extraterrestrial may refer to: Extraterrestrial life , life that occurs outside of Earth and that probably did not originate from Earth Extraterrestrial (TV program) , a program on the National Geographic Channel
Dennis Overbye, science writer for The New York Times, notes that the book is, "part graceful memoir and part plea for keeping an open mind about the possibilities of what is out there in the universe — in particular, life. Otherwise, he says, we might miss something amazing, like the church officials in the 17th century who refused to look ...