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This is an accepted version of this page This is the latest accepted revision, reviewed on 6 March 2025. Discrepancy 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 ...
The concept originates in Robin Hanson's argument that the failure to find any extraterrestrial civilizations in the observable universe implies that something is wrong with one or more of the arguments (from various scientific disciplines) that the appearance of advanced intelligent life is probable; this observation is conceptualized in terms ...
Within the limits of existing human technology, any practical search for distant intelligent life must necessarily be a search for some manifestation of a distant technology. After about 50 years, the Drake equation is still of seminal importance because it is a 'road map' of what we need to learn in order to solve this fundamental existential ...
All but Impossible to Find for Years, Lily Tomlin’s ‘The Search for Signs of Intelligent Life in the Universe’ Is Back Peter Debruge December 13, 2024 at 10:20 PM
The Big Bang took place 13.8 billion years ago, the Solar System was formed 4.6 billion years ago, and the first hominids appeared 6 million years ago. Life on other planets may have started, evolved, given birth to extraterrestrial intelligences, and perhaps even faced a planetary extinction event millions or even billions of years ago.
That ocean probably doesn't have little green men swimming around or other "intelligent" creatures, but it could have very basic forms of life. NASA is planning a mission to Europa , which would ...
Ward and Brownlee argue that the universe is fundamentally hostile to complex life and that while microbial life may be common in the universe, complex intelligent life (like the evolution of biological complexity from simple life on Earth) requires an exceptionally unlikely set of circumstances, and therefore complex life is likely to be extremely rare.
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