Enrico Fermi's paradox wondered why, given the age and size of the universe and that there are billions of stars and planets that have existed for billions of years, we have not detected any other alien civilizations. There have been attempts to resolve the Fermi paradox by finding evidence of alien civilizations, along with thoughts that such life could exist without humans knowing.
The physicist Enrico Fermi first asked the question in an informal discussion in 1950. A paper by Michael H. Hart in 1975 made scientists more curious and they began to study the question in more detail. This is why some people call it the Fermi–Hart paradox. Other common names for the same phenomenon are Fermi's question ("Where are they?"), the Fermi Problem, the Great Silence, and silentium universi (Latin for "the silence of the universe"; the misspelling silencium universi is also common).
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References[change | change source]
- Wesson, Paul (1990). "Cosmology, extraterrestrial intelligence, and a resolution of the Fermi-Hart paradox". Royal Astronomical Society, Quarterly Journal 31: 161–170.
- Brin, Glen David (1983). "The 'Great Silence': The Controversy Concerning Extraterrestrial Intelligent Life". Quarterly Journal of Royal Astronomical Society 24: 283–309.
- James Annis (1999). "An Astrophysical Explanation for the Great Silence". arXiv:astro-ph/9901322 [astro-ph].
- Hanson, Robin (1998). "The Great Filter – Are We Almost Past It?". http://hanson.gmu.edu/greatfilter.html.
- Bostrom, Nick (2007). In Great Silence there is Great Hope. http://www.nickbostrom.com/papers/fermi.pdf. Retrieved 2010-09-06.
- Milan M. Ćirković (2009). "Fermi's Paradox – The Last Challenge for Copernicanism?". Serbian Astronomical Journal 178 (178): 1–20. doi:10.2298/SAJ0978001C.
- Lem, Stanisław (1983). His Master's Voice. Harvest Books. ISBN 0-15-640300-5. http://books.google.com/?id=I5gYWtcfMioC&lpg=PA73&dq=%22silentium%20universi%22%20lem&pg=PA73.