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  2. Extraterrestrial intelligence - Wikipedia

    en.wikipedia.org/wiki/Extraterrestrial_intelligence

    There has been a search for signals from extraterrestrial intelligence for several decades, with no significant results. [13] Active SETI (Active Search for Extra-Terrestrial Intelligence) is the attempt to send messages to intelligent extraterrestrial life. Active SETI messages are usually sent in the form of radio signals.

  3. Extraterrestrial life - Wikipedia

    en.wikipedia.org/wiki/Extraterrestrial_life

    The concept of extraterrestrial life, and particularly extraterrestrial intelligence, has had a major cultural impact, especially extraterrestrials in fiction. Science fiction has communicated scientific ideas, imagined a range of possibilities, and influenced public interest in and perspectives on extraterrestrial life.

  4. Fermi paradox - Wikipedia

    en.wikipedia.org/wiki/Fermi_paradox

    This is an accepted version of this page This is the latest accepted revision, reviewed on 20 January 2025. Problem of the lack of evidence for alien life despite its apparent likelihood This article is about the absence of clear evidence of extraterrestrial life. For a type of estimation problem, see Fermi problem. Enrico Fermi (Los Alamos 1945) The Fermi paradox is the discrepancy between ...

  5. Scientists expand search for signs of intelligent alien life

    www.aol.com/news/scientists-expand-search-signs...

    Scientists have expanded the search for technologically advanced extraterrestrial civilizations by monitoring a star-dense region toward the core of our galaxy for a type of signal that could be ...

  6. Searching for extraterrestrial intelligence: The science ...

    www.aol.com/news/searching-extraterrestrial...

    Over a quarter-century ago, famed astrophysicist and science communicator Carl Sagan and his wife Ann Druyan, Creative Director of NASA’s Voyager Interstellar Message Project, wrote a story ...

  7. 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.

  8. Extraterrestrial: The First Sign of Intelligent Life Beyond ...

    en.wikipedia.org/wiki/Extraterrestrial:_The...

    Extraterrestrial: The First Sign of Intelligent Life Beyond Earth (also known as Extraterrestrial) [1] [2] is a popular science book written by American theoretical physicist and Harvard University astronomer Avi Loeb, [3] [4] [5] published by Houghton Mifflin Harcourt on 26 January 2021. [6] [7]

  9. Search for extraterrestrial intelligence - Wikipedia

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

    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.