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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 ...
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).
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.
Nucleic acids may not be the only biomolecules in the universe capable of coding for life processes. [1]Astrobiology (also xenology or exobiology) is a scientific field within the life and environmental sciences that studies the origins, early evolution, distribution, and future of life in the universe by investigating its deterministic conditions and contingent events. [2]
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
The Breakthrough Listen project will now be able to search more than a million stars within two years as it searches for signs of intelligent extraterrestrial life.
Given the age of the Milky Way galaxy, an ancient extraterrestrial civilization may have existed and sent probes to the Solar System millions or even billions of years before the evolution of Homo sapiens. [88] Thus, a probe sent may have been nonfunctional for millions of years before humans learn of its existence. [88]
Space Telescope Science Institute Office of Public Outreach “Every smudge you see is an entire galaxy. That kind of full-force acquisition of data—that can keep astrophysicists busy for ...