Fermi Paradox
The contradiction between the high probability of extraterrestrial civilizations and the lack of evidence for or contact with such civilizations.
Documented record
Known Facts
The Fermi Paradox was articulated by physicist Enrico Fermi in 1950.
It highlights the contradiction between high probability of alien civilizations and lack of evidence.
The Drake Equation estimates the number of detectable civilizations in our galaxy.
Despite decades of searching, no confirmed extraterrestrial signals or artifacts have been found.
Many solutions have been proposed, from the Rare Earth hypothesis to the Dark Forest Theory.
Supporting claims & documentation
Evidence For
SETI Searches
ANALYSISDecades of SETI searches have found no confirmed extraterrestrial signals.
SOURCE:SETI Institute / Various observatories
Counterpoints & criticisms
Evidence Against
No Evidence of Aliens
ANALYSISDespite high probability estimates, no evidence of extraterrestrial life has been found.
SOURCE:Scientific consensus
Unresolved inquiries
Open Questions
Are we alone in the universe?
Why haven't we detected other civilizations?
What is the most plausible solution to the Fermi Paradox?
Should we actively broadcast signals to space?
Chronological record
Timeline
Enrico Fermi articulates the paradox.
Frank Drake formulates the Drake Equation.
SETI searches continue with no confirmed detections.
Connected dossiers
Related Investigations
References & further reading
Sources
Automatically discovered links
Related Connections
Both involve activities during the 1950s through 1970s periods.
NASA appear in both.
Both involve activities during the 1970s period.