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  2. Extraterrestrial life - Wikipedia

    en.wikipedia.org/wiki/Extraterrestrial_life

    Science also took a deeper interest in the mechanics of natural phenomena, trying to explain not just the way nature works but also the reasons for working that way. [132] There was very little actual discussion about extraterrestrial life before this point, as the Aristotlean ideas remained influential while geocentrism was still accepted.

  3. Extraterrestrial intelligence - Wikipedia

    en.wikipedia.org/wiki/Extraterrestrial_intelligence

    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).

  4. History of the extraterrestrial life debate - Wikipedia

    en.wikipedia.org/wiki/History_of_the...

    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.

  5. Search for extraterrestrial intelligence - Wikipedia

    en.wikipedia.org/wiki/Search_for...

    The search for extraterrestrial intelligence (SETI) is a global scientific effort to detect extraterrastrial signals, or evidence of intelligent life beyond earth.. Reaserchers use methods such as monitoring electromagnetic radiation, searching for optical signals, and investigating potential extratterestrial artifacts for any signs of transmission from civilizations present on othe

  6. Southern hemisphere’s largest radio telescope joins search ...

    www.aol.com/news/extraterrestrial-live-meerkat...

    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.

  7. NASA scientist predicts alien life will be discovered in the ...

    www.aol.com/news/2015-04-08-nasa-scientist...

    Most scientists think liquid water is one of the most important factors for supporting life as we know it, and further reason that if billions of planets may have liquid water then there are many ...

  8. Potential cultural impact of extraterrestrial contact - Wikipedia

    en.wikipedia.org/wiki/Potential_cultural_impact...

    Humanity might at first revere the knowledge as having the potential to advance the human species, and might even feel inferior to the extraterrestrial species, but would gradually grow in arrogance as it gained more and more intimate knowledge of the science, technology, and other cultural developments of an advanced extraterrestrial civilization.

  9. Planetary habitability in the Solar System - Wikipedia

    en.wikipedia.org/wiki/Planetary_habitability_in...

    Planetary habitability in the Solar System is the study that searches the possible existence of past or present extraterrestrial life in those celestial bodies. As exoplanets are too far away and can only be studied by indirect means, the celestial bodies in the Solar System allow for a much more detailed study: direct telescope observation, space probes, rovers and even human spaceflight.