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  2. 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.

  3. Outline of extraterrestrial life - Wikipedia

    en.wikipedia.org/wiki/Outline_of...

    The following outline is provided as an overview of and topical guide to extraterrestrial life: Extraterrestrial life – is any type of lifeform, from prokaryotes to intelligent beings, that is neither native of Earth or transplanted from it. So far, no extraterrestrial life has ever been found. [1]

  4. List of alleged extraterrestrial beings - Wikipedia

    en.wikipedia.org/wiki/List_of_alleged...

    This is a list of extraterrestrial beings that have been reported in close encounters, claimed or speculated to be associated with unidentified flying objects (UFOs) (not to be confused with the meaning of the term "alien species" in the biological science of ecology).

  5. 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 24 December 2024. 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 ...

  6. 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.

  7. Is extraterrestrial life inevitable? Some think so - AOL

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

    Most astronomers believe that life does exist in locations other than Earth. Even NASA’s official position is that it seems almost inevitable. Is extraterrestrial life inevitable?

  8. Signs of alien life could be found in a single grain of ice ...

    www.aol.com/signs-alien-life-could-found...

    Alien life could be found in a tiny grain of ice, researchers have said. The discovery suggests that upcoming telescopes might be able to spot extraterrestrial life relatively soon.

  9. History of the extraterrestrial life debate - Wikipedia

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

    The existence of extraterrestrial life is a scientific idea that has been debated for centuries. Initially, the question was purely speculative; in modern times a limited amount of scientific evidence provides some answers.

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