"The Drake Equation is a probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way galaxy."
On behalf of the entire SETI Institute, we wish one and all a safe and happy holidays and a joyous new year, full of wonder and exploration! -- Bill Diamond, President and CEO (Image credit: Danielle Futselaar)
The Drake Equation on Behance
[astrobiology] The famous Drake Equation put forward by Frank Drake back in the 1961. See also "Rare Earth equation" (a somewhat less trusted equation, but interesting nonetheless). ~Al. A.
BBC - Future - Science Environment - Drake equation How many alien civilizations exist -152752
Drake Equation,Fuzz,Lp Vinyl,Kardashev Scale,Fermi Paradox,Electric,Vinyls
Drake equation - Wikipedia, the free encyclopedia
the drake equation - Google Search